---
_id: '14887'
abstract:
- lang: eng
text: 'Episodic memories are encoded by experience-activated neuronal ensembles
that remain necessary and sufficient for recall. However, the temporal evolution
of memory engrams after initial encoding is unclear. In this study, we employed
computational and experimental approaches to examine how the neural composition
and selectivity of engrams change with memory consolidation. Our spiking neural
network model yielded testable predictions: memories transition from unselective
to selective as neurons drop out of and drop into engrams; inhibitory activity
during recall is essential for memory selectivity; and inhibitory synaptic plasticity
during memory consolidation is critical for engrams to become selective. Using
activity-dependent labeling, longitudinal calcium imaging and a combination of
optogenetic and chemogenetic manipulations in mouse dentate gyrus, we conducted
contextual fear conditioning experiments that supported our model’s predictions.
Our results reveal that memory engrams are dynamic and that changes in engram
composition mediated by inhibitory plasticity are crucial for the emergence of
memory selectivity.'
acknowledgement: We thank S. Erisken from Inscopix for helping us establish in vivo
one-photon calcium imaging for this work. We thank K. Su at Tsinghua University
for assistance with this work. This work was funded by the President’s PhD Scholarship
from Imperial College London (D.F.T.), the Wellcome Trust (225412/Z/22/Z) (S.S.),
the Biotechnology and Biological Sciences Research Council (BB/N013956/1 and BB/N019008/1)
(C.C.), the Wellcome Trust (200790/Z/16/Z) (C.C.), the Simons Foundation (564408)
(C.C.) and the Engineering and Physical Sciences Research Council (EP/R035806/1)
(CC). The School of Life Sciences and the IDG/McGovern Institute for Brain Research
supported Y.Z. The Warren Alpert Distinguished Scholar Award and National Institutes
of Health 1K99NS125131-01 supported D.S.R.
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Douglas
full_name: Feitosa Tomé, Douglas
id: 0eed2d40-3d48-11ec-8d38-f789cc2e40b2
last_name: Feitosa Tomé
- first_name: Ying
full_name: Zhang, Ying
last_name: Zhang
- first_name: Tomomi
full_name: Aida, Tomomi
last_name: Aida
- first_name: Olivia
full_name: Mosto, Olivia
last_name: Mosto
- first_name: Yifeng
full_name: Lu, Yifeng
last_name: Lu
- first_name: Mandy
full_name: Chen, Mandy
last_name: Chen
- first_name: Sadra
full_name: Sadeh, Sadra
last_name: Sadeh
- first_name: Dheeraj S.
full_name: Roy, Dheeraj S.
last_name: Roy
- first_name: Claudia
full_name: Clopath, Claudia
last_name: Clopath
citation:
ama: Feitosa Tomé D, Zhang Y, Aida T, et al. Dynamic and selective engrams emerge
with memory consolidation. Nature Neuroscience. 2024. doi:10.1038/s41593-023-01551-w
apa: Feitosa Tomé, D., Zhang, Y., Aida, T., Mosto, O., Lu, Y., Chen, M., … Clopath,
C. (2024). Dynamic and selective engrams emerge with memory consolidation. Nature
Neuroscience. Springer Nature. https://doi.org/10.1038/s41593-023-01551-w
chicago: Feitosa Tomé, Douglas, Ying Zhang, Tomomi Aida, Olivia Mosto, Yifeng Lu,
Mandy Chen, Sadra Sadeh, Dheeraj S. Roy, and Claudia Clopath. “Dynamic and Selective
Engrams Emerge with Memory Consolidation.” Nature Neuroscience. Springer
Nature, 2024. https://doi.org/10.1038/s41593-023-01551-w.
ieee: D. Feitosa Tomé et al., “Dynamic and selective engrams emerge with
memory consolidation,” Nature Neuroscience. Springer Nature, 2024.
ista: Feitosa Tomé D, Zhang Y, Aida T, Mosto O, Lu Y, Chen M, Sadeh S, Roy DS, Clopath
C. 2024. Dynamic and selective engrams emerge with memory consolidation. Nature
Neuroscience.
mla: Feitosa Tomé, Douglas, et al. “Dynamic and Selective Engrams Emerge with Memory
Consolidation.” Nature Neuroscience, Springer Nature, 2024, doi:10.1038/s41593-023-01551-w.
short: D. Feitosa Tomé, Y. Zhang, T. Aida, O. Mosto, Y. Lu, M. Chen, S. Sadeh, D.S.
Roy, C. Clopath, Nature Neuroscience (2024).
date_created: 2024-01-28T23:01:43Z
date_published: 2024-01-19T00:00:00Z
date_updated: 2024-01-29T09:22:00Z
day: '19'
department:
- _id: TiVo
doi: 10.1038/s41593-023-01551-w
external_id:
isi:
- '001145442300001'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41593-023-01551-w
month: '01'
oa: 1
oa_version: Published Version
publication: Nature Neuroscience
publication_identifier:
eissn:
- 1546-1726
issn:
- 1097-6256
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
related_material:
record:
- id: '14892'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Dynamic and selective engrams emerge with memory consolidation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '14251'
abstract:
- lang: eng
text: The phytohormone auxin and its directional transport through tissues play
a fundamental role in development of higher plants. This polar auxin transport
predominantly relies on PIN-FORMED (PIN) auxin exporters. Hence, PIN polarization
is crucial for development, but its evolution during the rise of morphological
complexity in land plants remains unclear. Here, we performed a cross-species
investigation by observing the trafficking and localization of endogenous and
exogenous PINs in two bryophytes, Physcomitrium patens and Marchantia polymorpha,
and in the flowering plant Arabidopsis thaliana. We confirmed that the GFP fusion
did not compromise the auxin export function of all examined PINs by using radioactive
auxin export assay and by observing the phenotypic changes in transgenic bryophytes.
Endogenous PINs polarize to filamentous apices, while exogenous Arabidopsis PINs
distribute symmetrically on the membrane in both bryophytes. In Arabidopsis root
epidermis, bryophytic PINs show no defined polarity. Pharmacological interference
revealed a strong cytoskeleton dependence of bryophytic but not Arabidopsis PIN
polarization. The divergence of PIN polarization and trafficking is also observed
within the bryophyte clade and between tissues of individual species. These results
collectively reveal a divergence of PIN trafficking and polarity mechanisms throughout
land plant evolution and a co-evolution of PIN sequence-based and cell-based polarity
mechanisms.
acknowledgement: This work was supported by the ERC grant (PR1023ERC02) to H. T. and
J. F., and by the ministry of science and technology (grant number 110-2636-B-005-001)
to K. J. L.
article_number: '100669'
article_processing_charge: Yes
article_type: original
author:
- first_name: Han
full_name: Tang, Han
id: 19BDF720-25A0-11EA-AC6E-928F3DDC885E
last_name: Tang
orcid: 0000-0001-6152-6637
- first_name: KJ
full_name: Lu, KJ
last_name: Lu
- first_name: Y
full_name: Zhang, Y
last_name: Zhang
- first_name: YL
full_name: Cheng, YL
last_name: Cheng
- first_name: SL
full_name: Tu, SL
last_name: Tu
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Tang H, Lu K, Zhang Y, Cheng Y, Tu S, Friml J. Divergence of trafficking and
polarization mechanisms for PIN auxin transporters during land plant evolution.
Plant Communications. 2024;5(1). doi:10.1016/j.xplc.2023.100669
apa: Tang, H., Lu, K., Zhang, Y., Cheng, Y., Tu, S., & Friml, J. (2024). Divergence
of trafficking and polarization mechanisms for PIN auxin transporters during land
plant evolution. Plant Communications. Elsevier. https://doi.org/10.1016/j.xplc.2023.100669
chicago: Tang, Han, KJ Lu, Y Zhang, YL Cheng, SL Tu, and Jiří Friml. “Divergence
of Trafficking and Polarization Mechanisms for PIN Auxin Transporters during Land
Plant Evolution.” Plant Communications. Elsevier, 2024. https://doi.org/10.1016/j.xplc.2023.100669.
ieee: H. Tang, K. Lu, Y. Zhang, Y. Cheng, S. Tu, and J. Friml, “Divergence of trafficking
and polarization mechanisms for PIN auxin transporters during land plant evolution,”
Plant Communications, vol. 5, no. 1. Elsevier, 2024.
ista: Tang H, Lu K, Zhang Y, Cheng Y, Tu S, Friml J. 2024. Divergence of trafficking
and polarization mechanisms for PIN auxin transporters during land plant evolution.
Plant Communications. 5(1), 100669.
mla: Tang, Han, et al. “Divergence of Trafficking and Polarization Mechanisms for
PIN Auxin Transporters during Land Plant Evolution.” Plant Communications,
vol. 5, no. 1, 100669, Elsevier, 2024, doi:10.1016/j.xplc.2023.100669.
short: H. Tang, K. Lu, Y. Zhang, Y. Cheng, S. Tu, J. Friml, Plant Communications
5 (2024).
date_created: 2023-09-01T11:32:02Z
date_published: 2024-01-08T00:00:00Z
date_updated: 2024-01-30T13:00:47Z
day: '08'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1016/j.xplc.2023.100669
ec_funded: 1
external_id:
pmid:
- '37528584'
file:
- access_level: open_access
checksum: edbc44c6d4a394d2bf70f92fdbb08f0a
content_type: application/pdf
creator: dernst
date_created: 2024-01-30T12:59:57Z
date_updated: 2024-01-30T12:59:57Z
file_id: '14911'
file_name: 2023_PlantCommunications_Tang.pdf
file_size: 2825565
relation: main_file
success: 1
file_date_updated: 2024-01-30T12:59:57Z
has_accepted_license: '1'
intvolume: ' 5'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
publication: Plant Communications
publication_identifier:
issn:
- 2590-3462
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Divergence of trafficking and polarization mechanisms for PIN auxin transporters
during land plant evolution
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2024'
...
---
_id: '14886'
abstract:
- lang: eng
text: It is a basic principle that an effect cannot come before the cause. Dispersive
relations that follow from this fundamental fact have proven to be an indispensable
tool in physics and engineering. They are most powerful in the domain of linear
response where they are known as Kramers-Kronig relations. However, when it comes
to nonlinear phenomena the implications of causality are much less explored, apart
from several notable exceptions. Here in this paper we demonstrate how to apply
the dispersive formalism to analyze the ultrafast nonlinear response in the context
of the paradigmatic nonlinear Kerr effect. We find that the requirement of causality
introduces a noticeable effect even under assumption that Kerr effect is mediated
by quasi-instantaneous off-resonant electronic hyperpolarizability. We confirm
this by experimentally measuring the time-resolved Kerr dynamics in GaAs by means
of a hybrid pump-probe Mach-Zehnder interferometer and demonstrate the presence
of an intrinsic lagging between amplitude and phase responses as predicted by
dispersive analysis. Our results describe a general property of the time-resolved
nonlinear processes thereby highlighting the importance of accounting for dispersive
effects in the nonlinear optical processes involving ultrashort pulses.
acknowledgement: The work was supported by the Institute of Science and Technology
Austria (ISTA). We thank Prof. John M. Dudley, Dr. Ugur Sezer, and Dr. Artem Volosniev
for valuable discussions.
article_number: '013042'
article_processing_charge: Yes
article_type: original
author:
- first_name: Dusan
full_name: Lorenc, Dusan
id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87
last_name: Lorenc
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
citation:
ama: 'Lorenc D, Alpichshev Z. Dispersive effects in ultrafast nonlinear phenomena:
The case of optical Kerr effect. Physical Review Research. 2024;6(1). doi:10.1103/PhysRevResearch.6.013042'
apa: 'Lorenc, D., & Alpichshev, Z. (2024). Dispersive effects in ultrafast nonlinear
phenomena: The case of optical Kerr effect. Physical Review Research. American
Physical Society. https://doi.org/10.1103/PhysRevResearch.6.013042'
chicago: 'Lorenc, Dusan, and Zhanybek Alpichshev. “Dispersive Effects in Ultrafast
Nonlinear Phenomena: The Case of Optical Kerr Effect.” Physical Review Research.
American Physical Society, 2024. https://doi.org/10.1103/PhysRevResearch.6.013042.'
ieee: 'D. Lorenc and Z. Alpichshev, “Dispersive effects in ultrafast nonlinear phenomena:
The case of optical Kerr effect,” Physical Review Research, vol. 6, no.
1. American Physical Society, 2024.'
ista: 'Lorenc D, Alpichshev Z. 2024. Dispersive effects in ultrafast nonlinear phenomena:
The case of optical Kerr effect. Physical Review Research. 6(1), 013042.'
mla: 'Lorenc, Dusan, and Zhanybek Alpichshev. “Dispersive Effects in Ultrafast Nonlinear
Phenomena: The Case of Optical Kerr Effect.” Physical Review Research,
vol. 6, no. 1, 013042, American Physical Society, 2024, doi:10.1103/PhysRevResearch.6.013042.'
short: D. Lorenc, Z. Alpichshev, Physical Review Research 6 (2024).
date_created: 2024-01-28T23:01:42Z
date_published: 2024-01-11T00:00:00Z
date_updated: 2024-01-31T12:01:16Z
day: '11'
ddc:
- '530'
department:
- _id: ZhAl
doi: 10.1103/PhysRevResearch.6.013042
file:
- access_level: open_access
checksum: 42d58f93ae74e7f2c4de058ef75ff8b2
content_type: application/pdf
creator: dernst
date_created: 2024-01-31T11:59:30Z
date_updated: 2024-01-31T11:59:30Z
file_id: '14918'
file_name: 2024_PhysicalReviewResearch_Lorenc.pdf
file_size: 2863627
relation: main_file
success: 1
file_date_updated: 2024-01-31T11:59:30Z
has_accepted_license: '1'
intvolume: ' 6'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: Physical Review Research
publication_identifier:
eissn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Dispersive effects in ultrafast nonlinear phenomena: The case of optical Kerr
effect'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2024'
...
---
_id: '14821'
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Heloisa
full_name: Chiossi, Heloisa
id: 2BBA502C-F248-11E8-B48F-1D18A9856A87
last_name: Chiossi
citation:
ama: Chiossi HSC. Adaptive hierarchical representations in the hippocampus. 2024.
doi:10.15479/at:ista:14821
apa: Chiossi, H. S. C. (2024). Adaptive hierarchical representations in the hippocampus.
Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:14821
chicago: Chiossi, Heloisa S. C. “Adaptive Hierarchical Representations in the Hippocampus.”
Institute of Science and Technology Austria, 2024. https://doi.org/10.15479/at:ista:14821.
ieee: H. S. C. Chiossi, “Adaptive hierarchical representations in the hippocampus,”
Institute of Science and Technology Austria, 2024.
ista: Chiossi HSC. 2024. Adaptive hierarchical representations in the hippocampus.
Institute of Science and Technology Austria.
mla: Chiossi, Heloisa S. C. Adaptive Hierarchical Representations in the Hippocampus.
Institute of Science and Technology Austria, 2024, doi:10.15479/at:ista:14821.
short: H.S.C. Chiossi, Adaptive Hierarchical Representations in the Hippocampus,
Institute of Science and Technology Austria, 2024.
date_created: 2024-01-16T14:25:21Z
date_published: 2024-01-19T00:00:00Z
date_updated: 2024-02-01T09:50:29Z
day: '19'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JoCs
doi: 10.15479/at:ista:14821
ec_funded: 1
file:
- access_level: closed
checksum: d3fa3de1abd5af5204c13e9d55375615
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: hchiossi
date_created: 2024-01-19T11:04:05Z
date_updated: 2024-01-19T11:04:05Z
file_id: '14838'
file_name: PhD_Thesis_190124.docx
file_size: 8656268
relation: source_file
- access_level: closed
checksum: 13adc8dcfb5b6b18107f89f0a98fa8bd
content_type: application/pdf
creator: hchiossi
date_created: 2024-01-19T11:03:59Z
date_updated: 2024-01-19T11:03:59Z
embargo: 2025-01-19
embargo_to: open_access
file_id: '14839'
file_name: PhD_Thesis_190124.pdf
file_size: 6567275
relation: main_file
file_date_updated: 2024-01-19T11:04:05Z
has_accepted_license: '1'
language:
- iso: eng
month: '01'
oa_version: Published Version
page: '89'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication_identifier:
issn:
- 2663 - 337X
publication_status: published
publisher: Institute of Science and Technology Austria
status: public
supervisor:
- first_name: Jozsef L
full_name: Csicsvari, Jozsef L
id: 3FA14672-F248-11E8-B48F-1D18A9856A87
last_name: Csicsvari
orcid: 0000-0002-5193-4036
title: Adaptive hierarchical representations in the hippocampus
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2024'
...
---
_id: '14901'
abstract:
- lang: eng
text: Global services like navigation, communication, and Earth observation have
increased dramatically in the 21st century due to advances in outer space industries.
But as orbits become increasingly crowded with both satellites and inevitable
space debris pollution, continued operations become endangered by the heightened
risks of debris collisions in orbit. Kessler Syndrome is the term for when a critical
threshold of orbiting debris triggers a runaway positive feedback loop of debris
collisions, creating debris congestion that can render orbits unusable. As this
potential tipping point becomes more widely recognized, there have been renewed
calls for debris mitigation and removal. Here, we combine complex systems and
social-ecological systems approaches to study how these efforts may affect space
debris accumulation and the likelihood of reaching Kessler Syndrome. Specifically,
we model how debris levels are affected by future launch rates, cleanup activities,
and collisions between extant debris. We contextualize and interpret our dynamic
model within a discussion of existing space debris governance and other social,
economic, and geopolitical factors that may influence effective collective management
of the orbital commons. In line with previous studies, our model finds that debris
congestion may be reached in less than 200 years, though a holistic management
strategy combining removal and mitigation actions can avoid such outcomes while
continuing space activities. Moreover, although active debris removal may be particularly
effective, the current lack of market and governance support may impede its implementation.
Research into these critical dynamics and the multi-faceted variables that influence
debris outcomes can support policymakers in curating impactful governance strategies
and realistic transition pathways to sustaining debris-free orbits. Overall, our
study is useful for communicating about space debris sustainability in policy
and education settings by providing an exploration of policy portfolio options
supported by a simple and clear social-ecological modeling approach.
acknowledgement: The authors would like to thank the special issue co-editors, Marco
Janssen and Xiao-Shan Yap, and the anonymous reviewers for their comments that helped
improve the manuscript. The paper also benefited from suggestions by other author
participants in this special issue. We would also like to thank the 2022 Santa Fe
Institute Complex Systems Summer School for providing space to initiate this study.
article_processing_charge: Yes
article_type: original
author:
- first_name: Keiko
full_name: Nomura, Keiko
last_name: Nomura
- first_name: Simon
full_name: Rella, Simon
id: B4765ACA-AA38-11E9-AC9A-0930E6697425
last_name: Rella
- first_name: Haily
full_name: Merritt, Haily
last_name: Merritt
- first_name: Mathieu
full_name: Baltussen, Mathieu
last_name: Baltussen
- first_name: Darcy
full_name: Bird, Darcy
last_name: Bird
- first_name: Annika
full_name: Tjuka, Annika
last_name: Tjuka
- first_name: Dan
full_name: Falk, Dan
last_name: Falk
citation:
ama: Nomura K, Rella S, Merritt H, et al. Tipping points of space debris in low
earth orbit. International Journal of the Commons. 2024;18(1). doi:10.5334/ijc.1275
apa: Nomura, K., Rella, S., Merritt, H., Baltussen, M., Bird, D., Tjuka, A., &
Falk, D. (2024). Tipping points of space debris in low earth orbit. International
Journal of the Commons. Ubiquity Press. https://doi.org/10.5334/ijc.1275
chicago: Nomura, Keiko, Simon Rella, Haily Merritt, Mathieu Baltussen, Darcy Bird,
Annika Tjuka, and Dan Falk. “Tipping Points of Space Debris in Low Earth Orbit.”
International Journal of the Commons. Ubiquity Press, 2024. https://doi.org/10.5334/ijc.1275.
ieee: K. Nomura et al., “Tipping points of space debris in low earth orbit,”
International Journal of the Commons, vol. 18, no. 1. Ubiquity Press, 2024.
ista: Nomura K, Rella S, Merritt H, Baltussen M, Bird D, Tjuka A, Falk D. 2024.
Tipping points of space debris in low earth orbit. International Journal of the
Commons. 18(1).
mla: Nomura, Keiko, et al. “Tipping Points of Space Debris in Low Earth Orbit.”
International Journal of the Commons, vol. 18, no. 1, Ubiquity Press, 2024,
doi:10.5334/ijc.1275.
short: K. Nomura, S. Rella, H. Merritt, M. Baltussen, D. Bird, A. Tjuka, D. Falk,
International Journal of the Commons 18 (2024).
date_created: 2024-01-30T11:58:02Z
date_published: 2024-01-11T00:00:00Z
date_updated: 2024-02-05T10:10:27Z
day: '11'
ddc:
- '550'
department:
- _id: GradSch
- _id: GaTk
doi: 10.5334/ijc.1275
file:
- access_level: open_access
checksum: b80ebc889033c365d8f8c05a0c655382
content_type: application/pdf
creator: dernst
date_created: 2024-02-05T10:06:35Z
date_updated: 2024-02-05T10:06:35Z
file_id: '14939'
file_name: 2023_IntJourCommons_Nomura.pdf
file_size: 1305786
relation: main_file
success: 1
file_date_updated: 2024-02-05T10:06:35Z
has_accepted_license: '1'
intvolume: ' 18'
issue: '1'
keyword:
- Sociology and Political Science
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: International Journal of the Commons
publication_identifier:
issn:
- 1875-0281
publication_status: published
publisher: Ubiquity Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Tipping points of space debris in low earth orbit
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 18
year: '2024'
...
---
_id: '14884'
abstract:
- lang: eng
text: We perform a stochastic homogenization analysis for composite materials exhibiting
a random microstructure. Under the assumptions of stationarity and ergodicity,
we characterize the Gamma-limit of a micromagnetic energy functional defined on
magnetizations taking value in the unit sphere and including both symmetric and
antisymmetric exchange contributions. This Gamma-limit corresponds to a micromagnetic
energy functional with homogeneous coefficients. We provide explicit formulas
for the effective magnetic properties of the composite material in terms of homogenization
correctors. Additionally, the variational analysis of the two exchange energy
terms is performed in the more general setting of functionals defined on manifold-valued
maps with Sobolev regularity, in the case in which the target manifold is a bounded,
orientable smooth surface with tubular neighborhood of uniform thickness. Eventually,
we present an explicit characterization of minimizers of the effective exchange
in the case of magnetic multilayers, providing quantitative evidence of Dzyaloshinskii’s
predictions on the emergence of helical structures in composite ferromagnetic
materials with stochastic microstructure.
acknowledgement: All authors acknowledge support of the Austrian Science Fund (FWF)
through the SFB project F65. The research of E. Davoli and L. D’Elia has additionally
been supported by the FWF through grants V662, Y1292, and P35359, as well as from
OeAD through the WTZ grant CZ09/2023.
article_number: '30'
article_processing_charge: No
article_type: original
author:
- first_name: Elisa
full_name: Davoli, Elisa
last_name: Davoli
- first_name: Lorenza
full_name: D’Elia, Lorenza
last_name: D’Elia
- first_name: Jonas
full_name: Ingmanns, Jonas
id: 71523d30-15b2-11ec-abd3-f80aa909d6b0
last_name: Ingmanns
citation:
ama: Davoli E, D’Elia L, Ingmanns J. Stochastic homogenization of micromagnetic
energies and emergence of magnetic skyrmions. Journal of Nonlinear Science.
2024;34(2). doi:10.1007/s00332-023-10005-3
apa: Davoli, E., D’Elia, L., & Ingmanns, J. (2024). Stochastic homogenization
of micromagnetic energies and emergence of magnetic skyrmions. Journal of Nonlinear
Science. Springer Nature. https://doi.org/10.1007/s00332-023-10005-3
chicago: Davoli, Elisa, Lorenza D’Elia, and Jonas Ingmanns. “Stochastic Homogenization
of Micromagnetic Energies and Emergence of Magnetic Skyrmions.” Journal of
Nonlinear Science. Springer Nature, 2024. https://doi.org/10.1007/s00332-023-10005-3.
ieee: E. Davoli, L. D’Elia, and J. Ingmanns, “Stochastic homogenization of micromagnetic
energies and emergence of magnetic skyrmions,” Journal of Nonlinear Science,
vol. 34, no. 2. Springer Nature, 2024.
ista: Davoli E, D’Elia L, Ingmanns J. 2024. Stochastic homogenization of micromagnetic
energies and emergence of magnetic skyrmions. Journal of Nonlinear Science. 34(2),
30.
mla: Davoli, Elisa, et al. “Stochastic Homogenization of Micromagnetic Energies
and Emergence of Magnetic Skyrmions.” Journal of Nonlinear Science, vol.
34, no. 2, 30, Springer Nature, 2024, doi:10.1007/s00332-023-10005-3.
short: E. Davoli, L. D’Elia, J. Ingmanns, Journal of Nonlinear Science 34 (2024).
date_created: 2024-01-28T23:01:42Z
date_published: 2024-01-23T00:00:00Z
date_updated: 2024-02-05T08:54:44Z
day: '23'
department:
- _id: JuFi
doi: 10.1007/s00332-023-10005-3
external_id:
arxiv:
- '2306.05151'
intvolume: ' 34'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2306.05151
month: '01'
oa: 1
oa_version: Preprint
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
grant_number: F6504
name: Taming Complexity in Partial Differential Systems
publication: Journal of Nonlinear Science
publication_identifier:
eissn:
- 1432-1467
issn:
- 0938-8974
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Stochastic homogenization of micromagnetic energies and emergence of magnetic
skyrmions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 34
year: '2024'
...
---
_id: '14933'
abstract:
- lang: eng
text: Centrioles are part of centrosomes and cilia, which are microtubule organising
centres (MTOC) with diverse functions. Despite their stability, centrioles can
disappear during differentiation, such as in oocytes, but little is known about
the regulation of their structural integrity. Our previous research revealed that
the pericentriolar material (PCM) that surrounds centrioles and its recruiter,
Polo kinase, are downregulated in oogenesis and sufficient for maintaining both
centrosome structural integrity and MTOC activity. We now show that the expression
of specific components of the centriole cartwheel and wall, including ANA1/CEP295,
is essential for maintaining centrosome integrity. We find that Polo kinase requires
ANA1 to promote centriole stability in cultured cells and eggs. In addition, ANA1
expression prevents the loss of centrioles observed upon PCM-downregulation. However,
the centrioles maintained by overexpressing and tethering ANA1 are inactive, unlike
the MTOCs observed upon tethering Polo kinase. These findings demonstrate that
several centriole components are needed to maintain centrosome structure. Our
study also highlights that centrioles are more dynamic than previously believed,
with their structural stability relying on the continuous expression of multiple
components.
acknowledgement: We thank all members of the Cell Cycle and Regulation Lab for the
discussions and for the critical reading of the manuscript. We thank Tomer Avidor-Reiss
(University of Toledo, Toledo, OH), Daniel St. Johnston (The Gurdon Institute, Cambridge,
UK), David Glover (University of Cambridge, Cambridge, UK), Jingyan Fu (Agricultural
University, Beijing, China) Jordan Raff (University of Oxford, Oxford, UK) and Timothy
Megraw (Florida State University, Tallahassee, FL) for sharing tools. We acknowledge
the technical support of Instituto Gulbenkian de Ciência (IGC)‘s Advanced Imaging
Facility, in particular Gabriel Martins, Nuno Pimpão Martins and José Marques. We
also thank Tiago Paixão from the IGC’s Quantitative & Digital Science Unit and Marco
Louro from the CCR lab for the support provided on statistical analysis. IGC’s Advanced
Imaging Facility (AIF-UIC) is supported by the national Portuguese funding ref#
PPBI-POCI-01-0145-FEDER -022122. We thank the IGC’s Fly Facility, supported by CONGENTO
(LISBOA-01-0145-FEDER-022170). This work was supported by an ERC grant (ERC-2015-CoG-683258)
awarded to MBD and a grant from the Portuguese Research Council (FCT) awarded to
APM (PTDC/BIA-BID/32225/2017).
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Ana
full_name: Pimenta-Marques, Ana
last_name: Pimenta-Marques
- first_name: Tania
full_name: Perestrelo, Tania
last_name: Perestrelo
- first_name: Patricia
full_name: Dos Reis Rodrigues, Patricia
id: 26E95904-5160-11E9-9C0B-C5B0DC97E90F
last_name: Dos Reis Rodrigues
orcid: 0000-0003-1681-508X
- first_name: Paulo
full_name: Duarte, Paulo
last_name: Duarte
- first_name: Ana
full_name: Ferreira-Silva, Ana
last_name: Ferreira-Silva
- first_name: Mariana
full_name: Lince-Faria, Mariana
last_name: Lince-Faria
- first_name: Mónica
full_name: Bettencourt-Dias, Mónica
last_name: Bettencourt-Dias
citation:
ama: Pimenta-Marques A, Perestrelo T, Dos Reis Rodrigues P, et al. Ana1/CEP295 is
an essential player in the centrosome maintenance program regulated by Polo kinase
and the PCM. EMBO reports. 2024;25(1):102-127. doi:10.1038/s44319-023-00020-6
apa: Pimenta-Marques, A., Perestrelo, T., Dos Reis Rodrigues, P., Duarte, P., Ferreira-Silva,
A., Lince-Faria, M., & Bettencourt-Dias, M. (2024). Ana1/CEP295 is an essential
player in the centrosome maintenance program regulated by Polo kinase and the
PCM. EMBO Reports. Embo Press. https://doi.org/10.1038/s44319-023-00020-6
chicago: Pimenta-Marques, Ana, Tania Perestrelo, Patricia Dos Reis Rodrigues, Paulo
Duarte, Ana Ferreira-Silva, Mariana Lince-Faria, and Mónica Bettencourt-Dias.
“Ana1/CEP295 Is an Essential Player in the Centrosome Maintenance Program Regulated
by Polo Kinase and the PCM.” EMBO Reports. Embo Press, 2024. https://doi.org/10.1038/s44319-023-00020-6.
ieee: A. Pimenta-Marques et al., “Ana1/CEP295 is an essential player in the
centrosome maintenance program regulated by Polo kinase and the PCM,” EMBO
reports, vol. 25, no. 1. Embo Press, pp. 102–127, 2024.
ista: Pimenta-Marques A, Perestrelo T, Dos Reis Rodrigues P, Duarte P, Ferreira-Silva
A, Lince-Faria M, Bettencourt-Dias M. 2024. Ana1/CEP295 is an essential player
in the centrosome maintenance program regulated by Polo kinase and the PCM. EMBO
reports. 25(1), 102–127.
mla: Pimenta-Marques, Ana, et al. “Ana1/CEP295 Is an Essential Player in the Centrosome
Maintenance Program Regulated by Polo Kinase and the PCM.” EMBO Reports,
vol. 25, no. 1, Embo Press, 2024, pp. 102–27, doi:10.1038/s44319-023-00020-6.
short: A. Pimenta-Marques, T. Perestrelo, P. Dos Reis Rodrigues, P. Duarte, A. Ferreira-Silva,
M. Lince-Faria, M. Bettencourt-Dias, EMBO Reports 25 (2024) 102–127.
date_created: 2024-02-04T23:00:53Z
date_published: 2024-01-10T00:00:00Z
date_updated: 2024-02-05T12:37:07Z
day: '10'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.1038/s44319-023-00020-6
file:
- access_level: open_access
checksum: 53c3ef43d9bd6d7bff3ffcf57d763cac
content_type: application/pdf
creator: dernst
date_created: 2024-02-05T12:35:03Z
date_updated: 2024-02-05T12:35:03Z
file_id: '14941'
file_name: 2023_EmboReports_PimentaMarques.pdf
file_size: 9645056
relation: main_file
success: 1
file_date_updated: 2024-02-05T12:35:03Z
has_accepted_license: '1'
intvolume: ' 25'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 102-127
publication: EMBO reports
publication_identifier:
eissn:
- 1469-3178
publication_status: published
publisher: Embo Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ana1/CEP295 is an essential player in the centrosome maintenance program regulated
by Polo kinase and the PCM
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 25
year: '2024'
...
---
_id: '14932'
abstract:
- lang: eng
text: The huge antlers of the extinct Irish elk have invited evolutionary speculation
since Darwin. In the 1970s, Stephen Jay Gould presented the first extensive data
on antler size in the Irish elk and combined these with comparative data from
other deer to test the hypothesis that the gigantic antlers were the outcome of
a positive allometry that constrained large-bodied deer to have proportionally
even larger antlers. He concluded that the Irish elk had antlers as predicted
for its size and interpreted this within his emerging framework of developmental
constraints as an explanatory factor in evolution. Here we reanalyze antler allometry
based on new morphometric data for 57 taxa of the family Cervidae. We also present
a new phylogeny for the Cervidae, which we use for comparative analyses. In contrast
to Gould, we find that the antlers of Irish elk were larger than predicted from
the allometry within the true deer, Cervini, as analyzed by Gould, but follow
the allometry across Cervidae as a whole. After dissecting the discrepancy, we
reject the allometric-constraint hypothesis because, contrary to Gould, we find
no similarity between static and evolutionary allometries, and because we document
extensive non-allometric evolution of antler size across the Cervidae.
acknowledgement: "Open access funding provided by University of Oslo (incl Oslo University
Hospital).\r\nWe thank Adrian Lister, Louis Tomsett, Roberto Portela Miguez and
Roula Pappa (NHMUK), Brian O'Toole and Eileen Westwig (AMNH), Daniela Kalthoff (NHRM),
Alexander Bibl and Zachos Frank (NHMW), Darrin Lunde and John Ososky (NMNH), Matthew
Parkes and Nigel Monaghan (NMI), Elizabetta Cioppi and Luca Bellucci (IGF), and
Yoshihiro Tanaka and Hiroyuki Taruno (OMNH), who helped us in obtaining the museum
data, and a special thanks to Jørgen Sikkeland (NTNU NHM) for assistance in obtaining
the ontogenetic data for the red deer. We thank Olja Toljagic and Kjetil L. Voje
for discussions, Ayumu Tsuboi for assistance with data collection, and Jean-Michel
Gaillard and the anonymous reviewers for comments on the manuscript. We thank the
Centre of Advanced Study (CAS) at the Norwegian Academy of Sciences and Letters
for hosting us during the academic year of 2019/2020 when much of the analysis and
writing were done. MT was funded by JSPS Research Fellowship for Young Scientists
(201603238)."
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Masahito
full_name: Tsuboi, Masahito
last_name: Tsuboi
- first_name: Bjørn Tore
full_name: Kopperud, Bjørn Tore
last_name: Kopperud
- first_name: Michael
full_name: Matschiner, Michael
last_name: Matschiner
- first_name: Mark
full_name: Grabowski, Mark
last_name: Grabowski
- first_name: Chrsitine
full_name: Syrowatka, Chrsitine
id: 205ffb76-7fe7-11eb-aa17-958bd11b99ad
last_name: Syrowatka
- first_name: Christophe
full_name: Pélabon, Christophe
last_name: Pélabon
- first_name: Thomas F.
full_name: Hansen, Thomas F.
last_name: Hansen
citation:
ama: Tsuboi M, Kopperud BT, Matschiner M, et al. Antler allometry, the Irish elk
and Gould revisited. Evolutionary Biology. 2024. doi:10.1007/s11692-023-09624-1
apa: Tsuboi, M., Kopperud, B. T., Matschiner, M., Grabowski, M., Syrowatka, C.,
Pélabon, C., & Hansen, T. F. (2024). Antler allometry, the Irish elk and Gould
revisited. Evolutionary Biology. Springer Nature. https://doi.org/10.1007/s11692-023-09624-1
chicago: Tsuboi, Masahito, Bjørn Tore Kopperud, Michael Matschiner, Mark Grabowski,
Chrsitine Syrowatka, Christophe Pélabon, and Thomas F. Hansen. “Antler Allometry,
the Irish Elk and Gould Revisited.” Evolutionary Biology. Springer Nature,
2024. https://doi.org/10.1007/s11692-023-09624-1.
ieee: M. Tsuboi et al., “Antler allometry, the Irish elk and Gould revisited,”
Evolutionary Biology. Springer Nature, 2024.
ista: Tsuboi M, Kopperud BT, Matschiner M, Grabowski M, Syrowatka C, Pélabon C,
Hansen TF. 2024. Antler allometry, the Irish elk and Gould revisited. Evolutionary
Biology.
mla: Tsuboi, Masahito, et al. “Antler Allometry, the Irish Elk and Gould Revisited.”
Evolutionary Biology, Springer Nature, 2024, doi:10.1007/s11692-023-09624-1.
short: M. Tsuboi, B.T. Kopperud, M. Matschiner, M. Grabowski, C. Syrowatka, C. Pélabon,
T.F. Hansen, Evolutionary Biology (2024).
date_created: 2024-02-04T23:00:53Z
date_published: 2024-01-29T00:00:00Z
date_updated: 2024-02-05T12:43:58Z
day: '29'
department:
- _id: MaRo
doi: 10.1007/s11692-023-09624-1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/s11692-023-09624-1
month: '01'
oa: 1
oa_version: Published Version
publication: Evolutionary Biology
publication_identifier:
eissn:
- 1934-2845
issn:
- 0071-3260
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Antler allometry, the Irish elk and Gould revisited
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '14934'
abstract:
- lang: eng
text: "We study random perturbations of a Riemannian manifold (M, g) by means of
so-called\r\nFractional Gaussian Fields, which are defined intrinsically by the
given manifold. The fields\r\nh• : ω \x02→ hω will act on the manifold via the
conformal transformation g \x02→ gω := e2hω g.\r\nOur focus will be on the regular
case with Hurst parameter H > 0, the critical case H = 0\r\nbeing the celebrated
Liouville geometry in two dimensions. We want to understand how basic\r\ngeometric
and functional-analytic quantities like diameter, volume, heat kernel, Brownian\r\nmotion,
spectral bound, or spectral gap change under the influence of the noise. And if
so, is\r\nit possible to quantify these dependencies in terms of key parameters
of the noise? Another\r\ngoal is to define and analyze in detail the Fractional
Gaussian Fields on a general Riemannian\r\nmanifold, a fascinating object of independent
interest."
acknowledgement: "The authors would like to thank Matthias Erbar and Ronan Herry for
valuable discussions on this project. They are also grateful to Nathanaël Berestycki,
and Fabrice Baudoin for respectively pointing out the references [7], and [6, 24],
and to Julien Fageot and Thomas Letendre for pointing out a mistake in a previous
version of the proof of Proposition 3.10. The authors feel very much indebted to
an anonymous reviewer for his/her careful reading and the many valuable suggestions
that have significantly contributed to the improvement of the paper. L.D.S. gratefully
acknowledges financial support by the Deutsche Forschungsgemeinschaft through CRC
1060 as well as through SPP 2265, and by the Austrian Science Fund (FWF) grant F65
at Institute of Science and Technology Austria. This research was funded in whole
or in part by the Austrian Science Fund (FWF) ESPRIT 208. For the purpose of open
access, the authors have applied a CC BY public copyright licence to any Author
Accepted Manuscript version arising from this submission. E.K. and K.-T.S. gratefully
acknowledge funding by the Deutsche Forschungsgemeinschaft through the Hausdorff
Center for Mathematics and through CRC 1060 as well as through SPP 2265.\r\nOpen
Access funding enabled and organized by Projekt DEAL."
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Lorenzo
full_name: Dello Schiavo, Lorenzo
id: ECEBF480-9E4F-11EA-B557-B0823DDC885E
last_name: Dello Schiavo
orcid: 0000-0002-9881-6870
- first_name: Eva
full_name: Kopfer, Eva
last_name: Kopfer
- first_name: Karl Theodor
full_name: Sturm, Karl Theodor
last_name: Sturm
citation:
ama: Dello Schiavo L, Kopfer E, Sturm KT. A discovery tour in random Riemannian
geometry. Potential Analysis. 2024. doi:10.1007/s11118-023-10118-0
apa: Dello Schiavo, L., Kopfer, E., & Sturm, K. T. (2024). A discovery tour
in random Riemannian geometry. Potential Analysis. Springer Nature. https://doi.org/10.1007/s11118-023-10118-0
chicago: Dello Schiavo, Lorenzo, Eva Kopfer, and Karl Theodor Sturm. “A Discovery
Tour in Random Riemannian Geometry.” Potential Analysis. Springer Nature,
2024. https://doi.org/10.1007/s11118-023-10118-0.
ieee: L. Dello Schiavo, E. Kopfer, and K. T. Sturm, “A discovery tour in random
Riemannian geometry,” Potential Analysis. Springer Nature, 2024.
ista: Dello Schiavo L, Kopfer E, Sturm KT. 2024. A discovery tour in random Riemannian
geometry. Potential Analysis.
mla: Dello Schiavo, Lorenzo, et al. “A Discovery Tour in Random Riemannian Geometry.”
Potential Analysis, Springer Nature, 2024, doi:10.1007/s11118-023-10118-0.
short: L. Dello Schiavo, E. Kopfer, K.T. Sturm, Potential Analysis (2024).
date_created: 2024-02-04T23:00:54Z
date_published: 2024-01-26T00:00:00Z
date_updated: 2024-02-05T13:04:23Z
day: '26'
department:
- _id: JaMa
doi: 10.1007/s11118-023-10118-0
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/s11118-023-10118-0
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
grant_number: F6504
name: Taming Complexity in Partial Differential Systems
publication: Potential Analysis
publication_identifier:
eissn:
- 1572-929X
issn:
- 0926-2601
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: A discovery tour in random Riemannian geometry
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '12312'
abstract:
- lang: eng
text: "Let $\\ell$ be a prime number. We classify the subgroups $G$ of $\\operatorname{Sp}_4(\\mathbb{F}_\\ell)$
and $\\operatorname{GSp}_4(\\mathbb{F}_\\ell)$ that act irreducibly on $\\mathbb{F}_\\ell^4$,
but such that every element of $G$ fixes an $\\mathbb{F}_\\ell$-vector subspace
of dimension 1. We use this classification to prove that the local-global principle
for isogenies of degree $\\ell$ between abelian surfaces over number fields holds
in many cases -- in particular, whenever the abelian surface has non-trivial endomorphisms
and $\\ell$ is large enough with respect to the field of definition. Finally,
we prove that there exist arbitrarily large primes $\\ell$ for which some abelian
surface\r\n$A/\\mathbb{Q}$ fails the local-global principle for isogenies of degree
$\\ell$."
acknowledgement: "It is a pleasure to thank Samuele Anni for his interest in this
project and for several discussions on the topic of this paper, which led in particular
to Remark 6.30 and to a better understanding of the difficulties with [6]. We also
thank John Cullinan for correspondence about [6] and Barinder Banwait for his many
insightful comments on the first version of this paper. Finally, we thank the referee
for their thorough reading of the manuscript.\r\nOpen access funding provided by
Università di Pisa within the CRUI-CARE Agreement. The authors have been partially
supported by MIUR (Italy) through PRIN 2017 “Geometric, algebraic and analytic methods
in arithmetic\" and PRIN 2022 “Semiabelian varieties, Galois representations and
related Diophantine problems\", and by the University of Pisa through PRA 2018-19
and 2022 “Spazi di moduli, rappresentazioni e strutture combinatorie\". The first
author is a member of the INdAM group GNSAGA."
article_number: '18'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Davide
full_name: Lombardo, Davide
last_name: Lombardo
- first_name: Matteo
full_name: Verzobio, Matteo
id: 7aa8f170-131e-11ed-88e1-a9efd01027cb
last_name: Verzobio
orcid: 0000-0002-0854-0306
citation:
ama: Lombardo D, Verzobio M. On the local-global principle for isogenies of abelian
surfaces. Selecta Mathematica. 2024;30(2). doi:10.1007/s00029-023-00908-0
apa: Lombardo, D., & Verzobio, M. (2024). On the local-global principle for
isogenies of abelian surfaces. Selecta Mathematica. Springer Nature. https://doi.org/10.1007/s00029-023-00908-0
chicago: Lombardo, Davide, and Matteo Verzobio. “On the Local-Global Principle for
Isogenies of Abelian Surfaces.” Selecta Mathematica. Springer Nature, 2024.
https://doi.org/10.1007/s00029-023-00908-0.
ieee: D. Lombardo and M. Verzobio, “On the local-global principle for isogenies
of abelian surfaces,” Selecta Mathematica, vol. 30, no. 2. Springer Nature,
2024.
ista: Lombardo D, Verzobio M. 2024. On the local-global principle for isogenies
of abelian surfaces. Selecta Mathematica. 30(2), 18.
mla: Lombardo, Davide, and Matteo Verzobio. “On the Local-Global Principle for Isogenies
of Abelian Surfaces.” Selecta Mathematica, vol. 30, no. 2, 18, Springer
Nature, 2024, doi:10.1007/s00029-023-00908-0.
short: D. Lombardo, M. Verzobio, Selecta Mathematica 30 (2024).
date_created: 2023-01-16T11:45:53Z
date_published: 2024-01-26T00:00:00Z
date_updated: 2024-02-05T12:25:00Z
day: '26'
department:
- _id: TiBr
doi: 10.1007/s00029-023-00908-0
external_id:
arxiv:
- '2206.15240'
intvolume: ' 30'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2206.15240
month: '01'
oa: 1
oa_version: Preprint
publication: Selecta Mathematica
publication_identifier:
eissn:
- 1420-9020
issn:
- 1022-1824
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the local-global principle for isogenies of abelian surfaces
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 30
year: '2024'
...
---
_id: '14930'
abstract:
- lang: eng
text: In this paper we investigate locally free representations of a quiver Q over
a commutative Frobenius algebra R by arithmetic Fourier transform. When the base
field is finite we prove that the number of isomorphism classes of absolutely
indecomposable locally free representations of fixed rank is independent of the
orientation of Q. We also prove that the number of isomorphism classes of locally
free absolutely indecomposable representations of the preprojective algebra of
Q over R equals the number of isomorphism classes of locally free absolutely indecomposable
representations of Q over R[t]/(t2). Using these results together with results
of Geiss, Leclerc and Schröer we give, when k is algebraically closed, a classification
of pairs (Q, R) such that the set of isomorphism classes of indecomposable locally
free representations of Q over R is finite. Finally when the representation is
free of rank 1 at each vertex of Q, we study the function that counts the number
of isomorphism classes of absolutely indecomposable locally free representations
of Q over the Frobenius algebra Fq[t]/(tr). We prove that they are polynomial
in q and their generating function is rational and satisfies a functional equation.
acknowledgement: Special thanks go to Christof Geiss, Bernard Leclerc and Jan Schröer
for explaining their work but also for sharing some unpublished results with us.
We also thank the referee for many useful suggestions. We would like to thank Tommaso
Scognamiglio for pointing out a mistake in the proof of Proposition 5.17 in an earlier
version of the paper. We would like also to thank Alexander Beilinson, Bill Crawley-Boevey,
Joel Kamnitzer, and Peng Shan for useful discussions.
article_number: '20'
article_processing_charge: No
article_type: original
author:
- first_name: Tamás
full_name: Hausel, Tamás
id: 4A0666D8-F248-11E8-B48F-1D18A9856A87
last_name: Hausel
- first_name: Emmanuel
full_name: Letellier, Emmanuel
last_name: Letellier
- first_name: Fernando
full_name: Rodriguez-Villegas, Fernando
last_name: Rodriguez-Villegas
citation:
ama: Hausel T, Letellier E, Rodriguez-Villegas F. Locally free representations of
quivers over commutative Frobenius algebras. Selecta Mathematica. 2024;30(2).
doi:10.1007/s00029-023-00914-2
apa: Hausel, T., Letellier, E., & Rodriguez-Villegas, F. (2024). Locally free
representations of quivers over commutative Frobenius algebras. Selecta Mathematica.
Springer Nature. https://doi.org/10.1007/s00029-023-00914-2
chicago: Hausel, Tamás, Emmanuel Letellier, and Fernando Rodriguez-Villegas. “Locally
Free Representations of Quivers over Commutative Frobenius Algebras.” Selecta
Mathematica. Springer Nature, 2024. https://doi.org/10.1007/s00029-023-00914-2.
ieee: T. Hausel, E. Letellier, and F. Rodriguez-Villegas, “Locally free representations
of quivers over commutative Frobenius algebras,” Selecta Mathematica, vol.
30, no. 2. Springer Nature, 2024.
ista: Hausel T, Letellier E, Rodriguez-Villegas F. 2024. Locally free representations
of quivers over commutative Frobenius algebras. Selecta Mathematica. 30(2), 20.
mla: Hausel, Tamás, et al. “Locally Free Representations of Quivers over Commutative
Frobenius Algebras.” Selecta Mathematica, vol. 30, no. 2, 20, Springer
Nature, 2024, doi:10.1007/s00029-023-00914-2.
short: T. Hausel, E. Letellier, F. Rodriguez-Villegas, Selecta Mathematica 30 (2024).
date_created: 2024-02-04T23:00:53Z
date_published: 2024-01-27T00:00:00Z
date_updated: 2024-02-05T12:58:21Z
day: '27'
department:
- _id: TaHa
doi: 10.1007/s00029-023-00914-2
intvolume: ' 30'
issue: '2'
language:
- iso: eng
month: '01'
oa_version: None
publication: Selecta Mathematica
publication_identifier:
eissn:
- 1420-9020
issn:
- 1022-1824
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Locally free representations of quivers over commutative Frobenius algebras
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 30
year: '2024'
...
---
_id: '14885'
abstract:
- lang: eng
text: The near-surface boundary layer can mediate the response of mountain glaciers
to external climate, cooling the overlying air and promoting a density-driven
glacier wind. The fundamental processes are conceptually well understood, though
the magnitudes of cooling and presence of glacier winds are poorly quantified
in space and time, increasing the forcing uncertainty for melt models. We utilize
a new data set of on-glacier meteorological measurements on three neighboring
glaciers in the Swiss Alps to explore their distinct response to regional climate
under the extreme 2022 summer. We find that synoptic wind origins and local terrain
modifications, not only glacier size, play an important role in the ability of
a glacier to cool the near-surface air. Warm air intrusions from valley or synoptically-driven
winds onto the glacier can occur between ∼19% and 64% of the time and contribute
between 3% and 81% of the total sensible heat flux to the surface during warm
afternoon hours, depending on the fetch of the glacier flowline and its susceptibility
to boundary layer erosion. In the context of extreme summer warmth, indicative
of future conditions, the boundary layer cooling (up to 6.5°C cooler than its
surroundings) and resultant katabatic wind flow are highly heterogeneous between
the study glaciers, highlighting the complex and likely non-linear response of
glaciers to an uncertain future.
acknowledgement: This project has received funding from the European Union's Horizon
2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement
No. 101026058. The authors acknowledge the invaluable field assistance of Marta
Corrà, Achille Jouberton, Marin Kneib, Stefan Fugger, Celine Ducret and Alexander
Groos. The authors would also like to thank Luca Carturan for advice regarding AWS
setup and maintenance and Simone Fatichi for provision and support in the use of
the Tethys-Chloris model. Open access funding provided by ETH-Bereich Forschungsanstalten.
article_number: e2023JD040214
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Thomas
full_name: Shaw, Thomas
id: 3caa3f91-1f03-11ee-96ce-e0e553054d6e
last_name: Shaw
orcid: 0000-0001-7640-6152
- first_name: Pascal
full_name: Buri, Pascal
id: 317987aa-9421-11ee-ac5a-b941b041abba
last_name: Buri
- first_name: Michael
full_name: Mccarthy, Michael
id: 22a2674a-61ce-11ee-94b5-d18813baf16f
last_name: Mccarthy
- first_name: Evan S.
full_name: Miles, Evan S.
last_name: Miles
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
orcid: 0000-0002-5554-8087
citation:
ama: 'Shaw T, Buri P, McCarthy M, Miles ES, Pellicciotti F. Local controls on near-surface
glacier cooling under warm atmospheric conditions. Journal of Geophysical Research:
Atmospheres. 2024;129(2). doi:10.1029/2023JD040214'
apa: 'Shaw, T., Buri, P., McCarthy, M., Miles, E. S., & Pellicciotti, F. (2024).
Local controls on near-surface glacier cooling under warm atmospheric conditions.
Journal of Geophysical Research: Atmospheres. Wiley. https://doi.org/10.1029/2023JD040214'
chicago: 'Shaw, Thomas, Pascal Buri, Michael McCarthy, Evan S. Miles, and Francesca
Pellicciotti. “Local Controls on Near-Surface Glacier Cooling under Warm Atmospheric
Conditions.” Journal of Geophysical Research: Atmospheres. Wiley, 2024.
https://doi.org/10.1029/2023JD040214.'
ieee: 'T. Shaw, P. Buri, M. McCarthy, E. S. Miles, and F. Pellicciotti, “Local controls
on near-surface glacier cooling under warm atmospheric conditions,” Journal
of Geophysical Research: Atmospheres, vol. 129, no. 2. Wiley, 2024.'
ista: 'Shaw T, Buri P, McCarthy M, Miles ES, Pellicciotti F. 2024. Local controls
on near-surface glacier cooling under warm atmospheric conditions. Journal of
Geophysical Research: Atmospheres. 129(2), e2023JD040214.'
mla: 'Shaw, Thomas, et al. “Local Controls on Near-Surface Glacier Cooling under
Warm Atmospheric Conditions.” Journal of Geophysical Research: Atmospheres,
vol. 129, no. 2, e2023JD040214, Wiley, 2024, doi:10.1029/2023JD040214.'
short: 'T. Shaw, P. Buri, M. McCarthy, E.S. Miles, F. Pellicciotti, Journal of Geophysical
Research: Atmospheres 129 (2024).'
date_created: 2024-01-28T23:01:42Z
date_published: 2024-01-28T00:00:00Z
date_updated: 2024-02-06T08:44:02Z
day: '28'
ddc:
- '550'
department:
- _id: FrPe
doi: 10.1029/2023JD040214
file:
- access_level: open_access
checksum: cad5b93caadb40c14e5faedc34f7bba7
content_type: application/pdf
creator: dernst
date_created: 2024-02-06T08:38:27Z
date_updated: 2024-02-06T08:38:27Z
file_id: '14943'
file_name: 2024_JGRAtmospheres_Shaw.pdf
file_size: 7481087
relation: main_file
success: 1
file_date_updated: 2024-02-06T08:38:27Z
has_accepted_license: '1'
intvolume: ' 129'
issue: '2'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: 'Journal of Geophysical Research: Atmospheres'
publication_identifier:
eissn:
- 2169-8996
issn:
- 2169-897X
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '14919'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Local controls on near-surface glacier cooling under warm atmospheric conditions
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 129
year: '2024'
...
---
_id: '14938'
abstract:
- lang: eng
text: High elevation headwater catchments are complex hydrological systems that
seasonally buffer water and release it in the form of snow and ice melt, modulating
downstream runoff regimes and water availability. In High Mountain Asia (HMA),
where a wide range of climates from semi-arid to monsoonal exist, the importance
of the cryospheric contributions to the water budget varies with the amount and
seasonal distribution of precipitation. Losses due to evapotranspiration and sublimation
are to date largely unquantified components of the water budget in such catchments,
although they can be comparable in magnitude to glacier melt contributions to
streamflow. 
Here, we simulate the hydrology of three high elevation headwater
catchments in distinct climates in HMA over 10 years using an ecohydrological
model geared towards high-mountain areas including snow and glaciers, forced with
reanalysis data. 
Our results show that evapotranspiration and sublimation
together are most important at the semi-arid site, Kyzylsu, on the northernmost
slopes of the Pamir mountain range. Here, the evaporative loss amounts to 28%
of the water throughput, which we define as the total water added to, or removed
from the water balance within a year. In comparison, evaporative losses are 19%
at the Central Himalayan site Langtang and 13% at the wettest site, 24K, on the
Southeastern Tibetan Plateau. At the three sites, respectively, sublimation removes
15%, 13% and 6% of snowfall, while evapotranspiration removes the equivalent of
76%, 28% and 19% of rainfall. In absolute terms, and across a comparable elevation
range, the highest ET flux is 413 mm yr-1 at 24K, while the highest sublimation
flux is 91 mm yr-1 at Kyzylsu. During warm and dry years, glacier melt was found
to only partially compensate for the annual supply deficit.
article_processing_charge: Yes
article_type: original
author:
- first_name: Stefan
full_name: Fugger, Stefan
id: 86698d64-c4c6-11ee-af02-cdf1e6a7d31f
last_name: Fugger
- first_name: Thomas
full_name: Shaw, Thomas
id: 3caa3f91-1f03-11ee-96ce-e0e553054d6e
last_name: Shaw
orcid: 0000-0001-7640-6152
- first_name: Achille
full_name: Jouberton, Achille
last_name: Jouberton
- first_name: Evan
full_name: Miles, Evan
last_name: Miles
- first_name: Pascal
full_name: Buri, Pascal
id: 317987aa-9421-11ee-ac5a-b941b041abba
last_name: Buri
- first_name: Michael
full_name: McCarthy, Michael
id: 22a2674a-61ce-11ee-94b5-d18813baf16f
last_name: McCarthy
- first_name: Catriona Louise
full_name: Fyffe, Catriona Louise
id: 001b0422-8d15-11ed-bc51-cab6c037a228
last_name: Fyffe
- first_name: Simone
full_name: Fatichi, Simone
last_name: Fatichi
- first_name: Marin
full_name: Kneib, Marin
last_name: Kneib
- first_name: Peter
full_name: Molnar, Peter
last_name: Molnar
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
orcid: 0000-0002-5554-8087
citation:
ama: Fugger S, Shaw T, Jouberton A, et al. Hydrological regimes and evaporative
flux partitioning at the climatic ends of High Mountain Asia. Environmental
Research Letters. doi:10.1088/1748-9326/ad25a0
apa: Fugger, S., Shaw, T., Jouberton, A., Miles, E., Buri, P., McCarthy, M., … Pellicciotti,
F. (n.d.). Hydrological regimes and evaporative flux partitioning at the climatic
ends of High Mountain Asia. Environmental Research Letters. IOP Publishing.
https://doi.org/10.1088/1748-9326/ad25a0
chicago: Fugger, Stefan, Thomas Shaw, Achille Jouberton, Evan Miles, Pascal Buri,
Michael McCarthy, Catriona Louise Fyffe, et al. “Hydrological Regimes and Evaporative
Flux Partitioning at the Climatic Ends of High Mountain Asia.” Environmental
Research Letters. IOP Publishing, n.d. https://doi.org/10.1088/1748-9326/ad25a0.
ieee: S. Fugger et al., “Hydrological regimes and evaporative flux partitioning
at the climatic ends of High Mountain Asia,” Environmental Research Letters.
IOP Publishing.
ista: Fugger S, Shaw T, Jouberton A, Miles E, Buri P, McCarthy M, Fyffe CL, Fatichi
S, Kneib M, Molnar P, Pellicciotti F. Hydrological regimes and evaporative flux
partitioning at the climatic ends of High Mountain Asia. Environmental Research
Letters.
mla: Fugger, Stefan, et al. “Hydrological Regimes and Evaporative Flux Partitioning
at the Climatic Ends of High Mountain Asia.” Environmental Research Letters,
IOP Publishing, doi:10.1088/1748-9326/ad25a0.
short: S. Fugger, T. Shaw, A. Jouberton, E. Miles, P. Buri, M. McCarthy, C.L. Fyffe,
S. Fatichi, M. Kneib, P. Molnar, F. Pellicciotti, Environmental Research Letters
(n.d.).
date_created: 2024-02-05T09:01:11Z
date_published: 2024-02-02T00:00:00Z
date_updated: 2024-02-06T08:35:39Z
day: '02'
ddc:
- '550'
department:
- _id: FrPe
doi: 10.1088/1748-9326/ad25a0
has_accepted_license: '1'
keyword:
- Public Health
- Environmental and Occupational Health
- General Environmental Science
- Renewable Energy
- Sustainability and the Environment
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1088/1748-9326/ad25a0
month: '02'
oa: 1
oa_version: Published Version
publication: Environmental Research Letters
publication_identifier:
issn:
- 1748-9326
publication_status: accepted
publisher: IOP Publishing
quality_controlled: '1'
status: public
title: Hydrological regimes and evaporative flux partitioning at the climatic ends
of High Mountain Asia
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '14213'
abstract:
- lang: eng
text: We introduce a method to segment the visual field into independently moving
regions, trained with no ground truth or supervision. It consists of an adversarial
conditional encoder-decoder architecture based on Slot Attention, modified to
use the image as context to decode optical flow without attempting to reconstruct
the image itself. In the resulting multi-modal representation, one modality (flow)
feeds the encoder to produce separate latent codes (slots), whereas the other
modality (image) conditions the decoder to generate the first (flow) from the
slots. This design frees the representation from having to encode complex nuisance
variability in the image due to, for instance, illumination and reflectance properties
of the scene. Since customary autoencoding based on minimizing the reconstruction
error does not preclude the entire flow from being encoded into a single slot,
we modify the loss to an adversarial criterion based on Contextual Information
Separation. The resulting min-max optimization fosters the separation of objects
and their assignment to different attention slots, leading to Divided Attention,
or DivA. DivA outperforms recent unsupervised multi-object motion segmentation
methods while tripling run-time speed up to 104FPS and reducing the performance
gap from supervised methods to 12% or less. DivA can handle different numbers
of objects and different image sizes at training and test time, is invariant to
permutation of object labels, and does not require explicit regularization.
article_processing_charge: No
author:
- first_name: Dong
full_name: Lao, Dong
last_name: Lao
- first_name: Zhengyang
full_name: Hu, Zhengyang
last_name: Hu
- first_name: Francesco
full_name: Locatello, Francesco
id: 26cfd52f-2483-11ee-8040-88983bcc06d4
last_name: Locatello
orcid: 0000-0002-4850-0683
- first_name: Yanchao
full_name: Yang, Yanchao
last_name: Yang
- first_name: Stefano
full_name: Soatto, Stefano
last_name: Soatto
citation:
ama: 'Lao D, Hu Z, Locatello F, Yang Y, Soatto S. Divided attention: Unsupervised
multi-object discovery with contextually separated slots. In: 1st Conference
on Parsimony and Learning. ; 2024.'
apa: 'Lao, D., Hu, Z., Locatello, F., Yang, Y., & Soatto, S. (2024). Divided
attention: Unsupervised multi-object discovery with contextually separated slots.
In 1st Conference on Parsimony and Learning. Hong Kong, China.'
chicago: 'Lao, Dong, Zhengyang Hu, Francesco Locatello, Yanchao Yang, and Stefano
Soatto. “Divided Attention: Unsupervised Multi-Object Discovery with Contextually
Separated Slots.” In 1st Conference on Parsimony and Learning, 2024.'
ieee: 'D. Lao, Z. Hu, F. Locatello, Y. Yang, and S. Soatto, “Divided attention:
Unsupervised multi-object discovery with contextually separated slots,” in 1st
Conference on Parsimony and Learning, Hong Kong, China, 2024.'
ista: 'Lao D, Hu Z, Locatello F, Yang Y, Soatto S. 2024. Divided attention: Unsupervised
multi-object discovery with contextually separated slots. 1st Conference on Parsimony
and Learning. CPAL: Conference on Parsimony and Learning.'
mla: 'Lao, Dong, et al. “Divided Attention: Unsupervised Multi-Object Discovery
with Contextually Separated Slots.” 1st Conference on Parsimony and Learning,
2024.'
short: D. Lao, Z. Hu, F. Locatello, Y. Yang, S. Soatto, in:, 1st Conference on Parsimony
and Learning, 2024.
conference:
end_date: 2024-01-03
location: Hong Kong, China
name: 'CPAL: Conference on Parsimony and Learning'
start_date: 2024-01-03
date_created: 2023-08-22T14:19:59Z
date_published: 2024-01-03T00:00:00Z
date_updated: 2024-02-12T08:56:23Z
day: '03'
ddc:
- '000'
department:
- _id: FrLo
external_id:
arxiv:
- '2304.01430'
file:
- access_level: open_access
checksum: 8fad894c34f1b3d5a14fb8ffb12f7277
content_type: application/pdf
creator: dernst
date_created: 2024-02-12T08:40:36Z
date_updated: 2024-02-12T08:40:36Z
file_id: '14978'
file_name: 2024_CPAL_Lao.pdf
file_size: 8038511
relation: main_file
success: 1
file_date_updated: 2024-02-12T08:40:36Z
has_accepted_license: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: 1st Conference on Parsimony and Learning
publication_status: published
quality_controlled: '1'
status: public
title: 'Divided attention: Unsupervised multi-object discovery with contextually separated
slots'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '14980'
abstract:
- lang: eng
text: Precision sensing and manipulation of milligram-scale mechanical oscillators
has attracted growing interest in the fields of table-top explorations of gravity
and tests of quantum mechanics at macroscopic scales. Torsional oscillators present
an opportunity in this regard due to their remarked isolation from environmental
noise. For torsional motion, an effective employment of optical cavities to enhance
optomechanical interactions—as already established for linear oscillators—so far
faced certain challenges. Here, we propose a concept for sensing and manipulating
torsional motion, where exclusively the torsional rotations of a pendulum are
mapped onto the path length of a single two-mirror optical cavity. The concept
inherently alleviates many limitations of previous approaches. A proof-of-principle
experiment is conducted with a rigidly controlled pendulum to explore the sensing
aspects of the concept and to identify practical limitations in a potential state-of-the
art setup. Based on this study, we anticipate development of precision torque
sensors utilizing torsional pendulums that can support sensitivities below 10−19Nm/√Hz,
while the motion of the pendulums are dominated by quantum radiation pressure
noise at sub-microwatts of incoming laser power. These developments will provide
horizons for experiments at the interface of quantum mechanics and gravity.
acknowledgement: "We thank Pere Rosselló for his contributions to the initial modeling
of the presented sensing technique. This work was supported by Institute of Science
and Technology Austria, and\r\nthe European Research Council under Grant No. 101087907
(ERC CoG QuHAMP)."
article_number: '013141'
article_processing_charge: Yes
article_type: original
author:
- first_name: Sofya
full_name: Agafonova, Sofya
id: 09501ff6-dca7-11ea-a8ae-b3e0b9166e80
last_name: Agafonova
orcid: 0000-0003-0582-2946
- first_name: Umang
full_name: Mishra, Umang
id: 4328fa4c-f128-11eb-9611-c107b0fe4d51
last_name: Mishra
- first_name: Fritz R
full_name: Diorico, Fritz R
id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
last_name: Diorico
orcid: 0000-0002-4947-8924
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
citation:
ama: Agafonova S, Mishra U, Diorico FR, Hosten O. Zigzag optical cavity for sensing
and controlling torsional motion. Physical Review Research. 2024;6(1).
doi:10.1103/physrevresearch.6.013141
apa: Agafonova, S., Mishra, U., Diorico, F. R., & Hosten, O. (2024). Zigzag
optical cavity for sensing and controlling torsional motion. Physical Review
Research. American Physical Society. https://doi.org/10.1103/physrevresearch.6.013141
chicago: Agafonova, Sofya, Umang Mishra, Fritz R Diorico, and Onur Hosten. “Zigzag
Optical Cavity for Sensing and Controlling Torsional Motion.” Physical Review
Research. American Physical Society, 2024. https://doi.org/10.1103/physrevresearch.6.013141.
ieee: S. Agafonova, U. Mishra, F. R. Diorico, and O. Hosten, “Zigzag optical cavity
for sensing and controlling torsional motion,” Physical Review Research,
vol. 6, no. 1. American Physical Society, 2024.
ista: Agafonova S, Mishra U, Diorico FR, Hosten O. 2024. Zigzag optical cavity for
sensing and controlling torsional motion. Physical Review Research. 6(1), 013141.
mla: Agafonova, Sofya, et al. “Zigzag Optical Cavity for Sensing and Controlling
Torsional Motion.” Physical Review Research, vol. 6, no. 1, 013141, American
Physical Society, 2024, doi:10.1103/physrevresearch.6.013141.
short: S. Agafonova, U. Mishra, F.R. Diorico, O. Hosten, Physical Review Research
6 (2024).
date_created: 2024-02-12T11:42:18Z
date_published: 2024-02-05T00:00:00Z
date_updated: 2024-02-12T11:49:06Z
day: '05'
ddc:
- '530'
department:
- _id: OnHo
doi: 10.1103/physrevresearch.6.013141
external_id:
arxiv:
- '2306.12804'
file:
- access_level: open_access
checksum: 3a39ebffb24c1cc1dd0b547a726dc52d
content_type: application/pdf
creator: dernst
date_created: 2024-02-12T11:46:50Z
date_updated: 2024-02-12T11:46:50Z
file_id: '14981'
file_name: 2024_PhysicalRevResearch_Agafonova.pdf
file_size: 1437167
relation: main_file
success: 1
file_date_updated: 2024-02-12T11:46:50Z
has_accepted_license: '1'
intvolume: ' 6'
issue: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: bdb2a702-d553-11ed-ba76-f12e3e5a3bc6
grant_number: '101087907'
name: 'A quantum hybrid of atoms and milligram-scale pendulums: towards gravitational
quantum mechanics'
publication: Physical Review Research
publication_identifier:
eissn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Zigzag optical cavity for sensing and controlling torsional motion
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2024'
...
---
_id: '14851'
abstract:
- lang: ger
text: Die Quantenrotation ist ein spannendes Phänomen, das in vielen verschiedenen
Systemen auftritt, von Molekülen und Atomen bis hin zu subatomaren Teilchen wie
Neutronen und Protonen. Durch den Einsatz von starken Laserpulsen ist es möglich,
die mathematisch anspruchsvolle Topologie der Rotation von Molekülen aufzudecken
und topologisch geschützte Zustände zu erzeugen, die unerwartetes Verhalten zeigen.
Diese Entdeckungen könnten Auswirkungen auf die Molekülphysik und physikalische
Chemie haben und die Entwicklung neuer Technologien ermöglichen. Die Verbindung
von Quantenrotation und Topologie stellt ein aufregendes, interdisziplinäres Forschungsfeld
dar und bietet neue Wege zur Kontrolle und Nutzung von quantenmechanischen Phänomenen.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Volker
full_name: Karle, Volker
id: D7C012AE-D7ED-11E9-95E8-1EC5E5697425
last_name: Karle
orcid: 0000-0002-6963-0129
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Karle V, Lemeshko M. Die faszinierende Topologie rotierender Quanten. Physik
in unserer Zeit. 2024;55(1):28-33. doi:10.1002/piuz.202301690
apa: Karle, V., & Lemeshko, M. (2024). Die faszinierende Topologie rotierender
Quanten. Physik in unserer Zeit. Wiley. https://doi.org/10.1002/piuz.202301690
chicago: Karle, Volker, and Mikhail Lemeshko. “Die faszinierende Topologie rotierender
Quanten.” Physik in unserer Zeit. Wiley, 2024. https://doi.org/10.1002/piuz.202301690.
ieee: V. Karle and M. Lemeshko, “Die faszinierende Topologie rotierender Quanten,”
Physik in unserer Zeit, vol. 55, no. 1. Wiley, pp. 28–33, 2024.
ista: Karle V, Lemeshko M. 2024. Die faszinierende Topologie rotierender Quanten.
Physik in unserer Zeit. 55(1), 28–33.
mla: Karle, Volker, and Mikhail Lemeshko. “Die faszinierende Topologie rotierender
Quanten.” Physik in unserer Zeit, vol. 55, no. 1, Wiley, 2024, pp. 28–33,
doi:10.1002/piuz.202301690.
short: V. Karle, M. Lemeshko, Physik in unserer Zeit 55 (2024) 28–33.
date_created: 2024-01-22T08:19:36Z
date_published: 2024-01-01T00:00:00Z
date_updated: 2024-02-15T14:29:04Z
day: '01'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1002/piuz.202301690
file:
- access_level: open_access
checksum: 3051dadcf9bc57da97e36b647c596ab1
content_type: application/pdf
creator: dernst
date_created: 2024-01-23T12:18:07Z
date_updated: 2024-01-23T12:18:07Z
file_id: '14878'
file_name: 2024_PhysikZeit_Karle.pdf
file_size: 1155244
relation: main_file
success: 1
file_date_updated: 2024-01-23T12:18:07Z
has_accepted_license: '1'
intvolume: ' 55'
issue: '1'
keyword:
- General Earth and Planetary Sciences
- General Environmental Science
language:
- iso: ger
month: '01'
oa: 1
oa_version: Published Version
page: 28-33
publication: Physik in unserer Zeit
publication_identifier:
eissn:
- 1521-3943
issn:
- 0031-9252
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Die faszinierende Topologie rotierender Quanten
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 55
year: '2024'
...
---
_id: '14986'
abstract:
- lang: eng
text: We prove a version of the tamely ramified geometric Langlands correspondence
in positive characteristic for GLn(k). Let k be an algebraically closed field
of characteristic p>n. Let X be a smooth projective curve over k with marked points,
and fix a parabolic subgroup of GLn(k) at each marked point. We denote by Bunn,P
the moduli stack of (quasi-)parabolic vector bundles on X, and by Locn,P the moduli
stack of parabolic flat connections such that the residue is nilpotent with respect
to the parabolic reduction at each marked point. We construct an equivalence between
the bounded derived category Db(Qcoh(Loc0n,P)) of quasi-coherent sheaves on an
open substack Loc0n,P⊂Locn,P, and the bounded derived category Db(D0Bunn,P-mod)
of D0Bunn,P-modules, where D0Bunn,P is a localization of DBunn,P the sheaf of
crystalline differential operators on Bunn,P. Thus we extend the work of Bezrukavnikov-Braverman
to the tamely ramified case. We also prove a correspondence between flat connections
on X with regular singularities and meromorphic Higgs bundles on the Frobenius
twist X(1) of X with first order poles .
acknowledgement: "This work was supported by the NSF [DMS-1502125to S.S.]; and the
European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie
grant agreement [101034413 to S.S.].\r\nI would like to thank my advisor Tom Nevins
for many helpful discussions on this subject and for his comments on this paper.
I would like to thank Christopher Dodd, Michael Groechenig, and Tamas Hausel for
helpful conversations. I would like to thank Tsao-Hsien Chen for useful comments
on an earlier version of this paper."
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Shiyu
full_name: Shen, Shiyu
id: 544cccd3-9005-11ec-87bc-94aef1c5b814
last_name: Shen
citation:
ama: Shen S. Tamely ramified geometric Langlands correspondence in positive characteristic.
International Mathematics Research Notices. 2024. doi:10.1093/imrn/rnae005
apa: Shen, S. (2024). Tamely ramified geometric Langlands correspondence in positive
characteristic. International Mathematics Research Notices. Oxford University
Press. https://doi.org/10.1093/imrn/rnae005
chicago: Shen, Shiyu. “Tamely Ramified Geometric Langlands Correspondence in Positive
Characteristic.” International Mathematics Research Notices. Oxford University
Press, 2024. https://doi.org/10.1093/imrn/rnae005.
ieee: S. Shen, “Tamely ramified geometric Langlands correspondence in positive characteristic,”
International Mathematics Research Notices. Oxford University Press, 2024.
ista: Shen S. 2024. Tamely ramified geometric Langlands correspondence in positive
characteristic. International Mathematics Research Notices.
mla: Shen, Shiyu. “Tamely Ramified Geometric Langlands Correspondence in Positive
Characteristic.” International Mathematics Research Notices, Oxford University
Press, 2024, doi:10.1093/imrn/rnae005.
short: S. Shen, International Mathematics Research Notices (2024).
date_created: 2024-02-14T12:16:17Z
date_published: 2024-02-05T00:00:00Z
date_updated: 2024-02-19T10:22:44Z
day: '05'
department:
- _id: TaHa
doi: 10.1093/imrn/rnae005
ec_funded: 1
external_id:
arxiv:
- '1810.12491'
keyword:
- General Mathematics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/imrn/rnae005
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
publication: International Mathematics Research Notices
publication_identifier:
eissn:
- 1687-0247
issn:
- 1073-7928
publication_status: epub_ahead
publisher: Oxford University Press
quality_controlled: '1'
status: public
title: Tamely ramified geometric Langlands correspondence in positive characteristic
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '15016'
abstract:
- lang: eng
text: 'The development, evolution, and function of the vertebrate central nervous
system (CNS) can be best studied using diverse model organisms. Amphibians, with
their unique phylogenetic position at the transition between aquatic and terrestrial
lifestyles, are valuable for understanding the origin and evolution of the tetrapod
brain and spinal cord. Their metamorphic developmental transitions and unique
regenerative abilities also facilitate the discovery of mechanisms for neural
circuit remodeling and replacement. The genetic toolkit for amphibians, however,
remains limited, with only a few species having sequenced genomes and a small
number of transgenic lines available. In mammals, recombinant adeno-associated
viral vectors (AAVs) have become a powerful alternative to genome modification
for visualizing and perturbing the nervous system. AAVs are DNA viruses that enable
neuronal transduction in both developing and adult animals with low toxicity and
spatial, temporal, and cell-type specificity. However, AAVs have never been shown
to transduce amphibian cells efficiently. To bridge this gap, we established a
simple, scalable, and robust strategy to screen AAV serotypes in three distantly-related
amphibian species: the frogs Xenopus laevis and Pelophylax bedriagae, and the
salamander Pleurodeles waltl, in both developing larval tadpoles and post-metamorphic
animals. For each species, we successfully identified at least two AAV serotypes
capable of infecting the CNS; however, no pan-amphibian serotype was identified,
indicating rapid evolution of AAV tropism. In addition, we developed an AAV-based
strategy that targets isochronic cohorts of developing neurons – a critical tool
for parsing neural circuit assembly. Finally, to enable visualization and manipulation
of neural circuits, we identified AAV variants for retrograde tracing of neuronal
projections in adult animals. Our findings expand the toolkit for amphibians to
include AAVs, establish a generalizable workflow for AAV screening in non-canonical
research organisms, generate testable hypotheses for the evolution of AAV tropism,
and lay the foundation for modern cross-species comparisons of vertebrate CNS
development, function, and evolution. '
acknowledgement: "We would like to extend our thanks to members of the Sweeney, Tosches,
Shein-Idelson,\r\nYamaguchi, Kelley, and Cline Labs for their contributions to this
project, discussion and support.\r\nWe additionally thank the Beckman Institute
Clover Center and Viviana Gradinaru (Caltech),\r\nKimberly Ritola (UNC NeuroTools),
Flavia Gama Gomez Leite (ISTA Viral Core), and Hüseyin\r\nCihan Önal (Shigemoto
Group, ISTA) for their consultation and assistance regarding AAVs, as\r\nwell as
Andras Simon and Alberto Joven for feedback and discussions on AAVs in Pleurodeles.\r\nTo
do these experiments, we have also benefited from the tremendous support of our
animal care and imaging facilities at our respective institutions, as well as the
amphibian stock centers\r\n(National Xenopus Resource Center, European Xenopus Resource
Center, Xenopus Express)\r\nand our funding sources: U.S. National Science Foundation
(NSF) Grant Number IOS 2110086\r\n(D.B.K., L.B.S., M.A.T., A.Y., and H.T.C.); United
States-Israel Binational Science Foundation\r\n(BSF) Grant Number 2020702 (M.S.-I.);
NSF Award Number 1645105 (G.J.G., M.E.H.); FTI\r\nStrategy Lower Austria Dissertation
Grant Number FTI21-D-046 (D.V.); Horizon Europe ERC\r\nStarting Grant Number 101041551
(L.B.S.); NIH grant number R35GM146973 (M.A.T.); Rita Allen\r\nFoundation award
number GA_032522_FE (M.A.T.); European Molecular Biology Organization\r\nLong-Term
Fellowship ALTF 874-2021 (A.D.); National Science Foundation Graduate Research\r\nFellowship
DGE 2036197 (E.C.J.B.); NIH grant number P40OD010997 (M.E.H)."
article_processing_charge: No
author:
- first_name: Eliza C.B.
full_name: Jaeger, Eliza C.B.
last_name: Jaeger
- first_name: David
full_name: Vijatovic, David
id: cf391e77-ec3c-11ea-a124-d69323410b58
last_name: Vijatovic
- first_name: Astrid
full_name: Deryckere, Astrid
last_name: Deryckere
- first_name: Nikol
full_name: Zorin, Nikol
last_name: Zorin
- first_name: Akemi L.
full_name: Nguyen, Akemi L.
last_name: Nguyen
- first_name: Georgiy
full_name: Ivanian, Georgiy
id: eaf2b366-cfd1-11ee-bbdf-c8790f800a05
last_name: Ivanian
- first_name: Jamie
full_name: Woych, Jamie
last_name: Woych
- first_name: Rebecca C
full_name: Arnold, Rebecca C
id: d6cce458-14c9-11ed-a755-c1c8fc6fde6f
last_name: Arnold
- first_name: Alonso
full_name: Ortega Gurrola, Alonso
last_name: Ortega Gurrola
- first_name: Arik
full_name: Shvartsman, Arik
last_name: Shvartsman
- first_name: Francesca
full_name: Barbieri, Francesca
id: a9492887-8972-11ed-ae7b-bfae10998254
last_name: Barbieri
- first_name: Florina-Alexandra
full_name: Toma, Florina-Alexandra
id: 85dd99f2-15b2-11ec-abd3-d1ae4d57f3b5
last_name: Toma
- first_name: Gary J.
full_name: Gorbsky, Gary J.
last_name: Gorbsky
- first_name: Marko E.
full_name: Horb, Marko E.
last_name: Horb
- first_name: Hollis T.
full_name: Cline, Hollis T.
last_name: Cline
- first_name: Timothy F.
full_name: Shay, Timothy F.
last_name: Shay
- first_name: Darcy B.
full_name: Kelley, Darcy B.
last_name: Kelley
- first_name: Ayako
full_name: Yamaguchi, Ayako
last_name: Yamaguchi
- first_name: Mark
full_name: Shein-Idelson, Mark
last_name: Shein-Idelson
- first_name: Maria Antonietta
full_name: Tosches, Maria Antonietta
last_name: Tosches
- first_name: Lora Beatrice Jaeger
full_name: Sweeney, Lora Beatrice Jaeger
id: 56BE8254-C4F0-11E9-8E45-0B23E6697425
last_name: Sweeney
orcid: 0000-0001-9242-5601
citation:
ama: Jaeger ECB, Vijatovic D, Deryckere A, et al. Adeno-associated viral tools to
trace neural development and connectivity across amphibians. bioRxiv. doi:10.1101/2024.02.15.580289
apa: Jaeger, E. C. B., Vijatovic, D., Deryckere, A., Zorin, N., Nguyen, A. L., Ivanian,
G., … Sweeney, L. B. (n.d.). Adeno-associated viral tools to trace neural development
and connectivity across amphibians. bioRxiv. https://doi.org/10.1101/2024.02.15.580289
chicago: Jaeger, Eliza C.B., David Vijatovic, Astrid Deryckere, Nikol Zorin, Akemi
L. Nguyen, Georgiy Ivanian, Jamie Woych, et al. “Adeno-Associated Viral Tools
to Trace Neural Development and Connectivity across Amphibians.” BioRxiv,
n.d. https://doi.org/10.1101/2024.02.15.580289.
ieee: E. C. B. Jaeger et al., “Adeno-associated viral tools to trace neural
development and connectivity across amphibians,” bioRxiv. .
ista: Jaeger ECB, Vijatovic D, Deryckere A, Zorin N, Nguyen AL, Ivanian G, Woych
J, Arnold RC, Ortega Gurrola A, Shvartsman A, Barbieri F, Toma F-A, Gorbsky GJ,
Horb ME, Cline HT, Shay TF, Kelley DB, Yamaguchi A, Shein-Idelson M, Tosches MA,
Sweeney LB. Adeno-associated viral tools to trace neural development and connectivity
across amphibians. bioRxiv, 10.1101/2024.02.15.580289.
mla: Jaeger, Eliza C. B., et al. “Adeno-Associated Viral Tools to Trace Neural Development
and Connectivity across Amphibians.” BioRxiv, doi:10.1101/2024.02.15.580289.
short: E.C.B. Jaeger, D. Vijatovic, A. Deryckere, N. Zorin, A.L. Nguyen, G. Ivanian,
J. Woych, R.C. Arnold, A. Ortega Gurrola, A. Shvartsman, F. Barbieri, F.-A. Toma,
G.J. Gorbsky, M.E. Horb, H.T. Cline, T.F. Shay, D.B. Kelley, A. Yamaguchi, M.
Shein-Idelson, M.A. Tosches, L.B. Sweeney, BioRxiv (n.d.).
date_created: 2024-02-20T09:20:32Z
date_published: 2024-02-16T00:00:00Z
date_updated: 2024-02-20T09:34:25Z
day: '16'
department:
- _id: LoSw
- _id: MaDe
- _id: GaNo
doi: 10.1101/2024.02.15.580289
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/2024.02.15.580289
month: '02'
oa: 1
oa_version: Preprint
project:
- _id: bd73af52-d553-11ed-ba76-912049f0ac7a
grant_number: FTI21-D-046
name: Entwicklung und Funktion der V1 Interneuronen vom Schwimmen zum Laufen während
der Metamorphose von Xenopus
- _id: ebb66355-77a9-11ec-83b8-b8ac210a4dae
grant_number: '101041551'
name: Development and Evolution of Tetrapod Motor Circuits
publication: bioRxiv
publication_status: submitted
status: public
title: Adeno-associated viral tools to trace neural development and connectivity across
amphibians
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '15012'
abstract:
- lang: eng
text: We solve a problem of Dujmović and Wood (2007) by showing that a complete
convex geometric graph on n vertices cannot be decomposed into fewer than n-1
star-forests, each consisting of noncrossing edges. This bound is clearly tight.
We also discuss similar questions for abstract graphs.
acknowledgement: János Pach’s Research partially supported by European Research Council
(ERC), grant “GeoScape” No. 882971 and by the Hungarian Science Foundation (NKFIH),
grant K-131529. Work by Morteza Saghafian is partially supported by the European
Research Council (ERC), grant No. 788183, and by the Wittgenstein Prize, Austrian
Science Fund (FWF), grant No. Z 342-N31.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: János
full_name: Pach, János
id: E62E3130-B088-11EA-B919-BF823C25FEA4
last_name: Pach
- first_name: Morteza
full_name: Saghafian, Morteza
id: f86f7148-b140-11ec-9577-95435b8df824
last_name: Saghafian
- first_name: Patrick
full_name: Schnider, Patrick
last_name: Schnider
citation:
ama: 'Pach J, Saghafian M, Schnider P. Decomposition of geometric graphs into star-forests.
In: 31st International Symposium on Graph Drawing and Network Visualization.
Vol 14465. Springer Nature; 2024:339-346. doi:10.1007/978-3-031-49272-3_23'
apa: 'Pach, J., Saghafian, M., & Schnider, P. (2024). Decomposition of geometric
graphs into star-forests. In 31st International Symposium on Graph Drawing
and Network Visualization (Vol. 14465, pp. 339–346). Isola delle Femmine,
Palermo, Italy: Springer Nature. https://doi.org/10.1007/978-3-031-49272-3_23'
chicago: Pach, János, Morteza Saghafian, and Patrick Schnider. “Decomposition of Geometric
Graphs into Star-Forests.” In 31st International Symposium on Graph Drawing
and Network Visualization, 14465:339–46. Springer Nature, 2024. https://doi.org/10.1007/978-3-031-49272-3_23.
ieee: J. Pach, M. Saghafian, and P. Schnider, “Decomposition of geometric graphs
into star-forests,” in 31st International Symposium on Graph Drawing and Network
Visualization, Isola delle Femmine, Palermo, Italy, 2024, vol. 14465, pp.
339–346.
ista: 'Pach J, Saghafian M, Schnider P. 2024. Decomposition of geometric graphs
into star-forests. 31st International Symposium on Graph Drawing and Network Visualization.
GD: Graph Drawing and Network Visualization, LNCS, vol. 14465, 339–346.'
mla: Pach, János, et al. “Decomposition of Geometric Graphs into Star-Forests.”
31st International Symposium on Graph Drawing and Network Visualization,
vol. 14465, Springer Nature, 2024, pp. 339–46, doi:10.1007/978-3-031-49272-3_23.
short: J. Pach, M. Saghafian, P. Schnider, in:, 31st International Symposium on
Graph Drawing and Network Visualization, Springer Nature, 2024, pp. 339–346.
conference:
end_date: 2023-09-22
location: Isola delle Femmine, Palermo, Italy
name: 'GD: Graph Drawing and Network Visualization'
start_date: 2023-09-20
date_created: 2024-02-18T23:01:03Z
date_published: 2024-01-01T00:00:00Z
date_updated: 2024-02-20T09:13:07Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/978-3-031-49272-3_23
ec_funded: 1
external_id:
arxiv:
- '2306.13201'
intvolume: ' 14465'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2306.13201
month: '01'
oa: 1
oa_version: Preprint
page: 339-346
project:
- _id: 266A2E9E-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '788183'
name: Alpha Shape Theory Extended
- _id: 268116B8-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z00342
name: The Wittgenstein Prize
publication: 31st International Symposium on Graph Drawing and Network Visualization
publication_identifier:
eissn:
- '16113349'
isbn:
- '9783031492716'
issn:
- '03029743'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Decomposition of geometric graphs into star-forests
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14465
year: '2024'
...
---
_id: '15006'
abstract:
- lang: eng
text: Graphical games are a useful framework for modeling the interactions of (selfish)
agents who are connected via an underlying topology and whose behaviors influence
each other. They have wide applications ranging from computer science to economics
and biology. Yet, even though an agent’s payoff only depends on the actions of
their direct neighbors in graphical games, computing the Nash equilibria and making
statements about the convergence time of "natural" local dynamics in particular
can be highly challenging. In this work, we present a novel approach for classifying
complexity of Nash equilibria in graphical games by establishing a connection
to local graph algorithms, a subfield of distributed computing. In particular,
we make the observation that the equilibria of graphical games are equivalent
to locally verifiable labelings (LVL) in graphs; vertex labelings which are verifiable
with constant-round local algorithms. This connection allows us to derive novel
lower bounds on the convergence time to equilibrium of best-response dynamics
in graphical games. Since we establish that distributed convergence can sometimes
be provably slow, we also introduce and give bounds on an intuitive notion of
"time-constrained" inefficiency of best responses. We exemplify how our results
can be used in the implementation of mechanisms that ensure convergence of best
responses to a Nash equilibrium. Our results thus also give insight into the convergence
of strategy-proof algorithms for graphical games, which is still not well understood.
acknowledgement: This work was partially funded by the Academy of Finland, grant 314888,
the European Research Council CoG 863818 (ForM-SMArt), and the Austrian Science
Fund (FWF) project I 4800-N (ADVISE). LS was supported by the Stochastic Analysis
and Application Research Center (SAARC) under National Research Foundation of Korea
grant NRF-2019R1A5A1028324.
alternative_title:
- LIPIcs
article_number: '11'
article_processing_charge: No
author:
- first_name: Juho
full_name: Hirvonen, Juho
last_name: Hirvonen
- first_name: Laura
full_name: Schmid, Laura
id: 38B437DE-F248-11E8-B48F-1D18A9856A87
last_name: Schmid
orcid: 0000-0002-6978-7329
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Stefan
full_name: Schmid, Stefan
last_name: Schmid
citation:
ama: 'Hirvonen J, Schmid L, Chatterjee K, Schmid S. On the convergence time in graphical
games: A locality-sensitive approach. In: 27th International Conference on
Principles of Distributed Systems. Vol 286. Schloss Dagstuhl - Leibniz-Zentrum
für Informatik; 2024. doi:10.4230/LIPIcs.OPODIS.2023.11'
apa: 'Hirvonen, J., Schmid, L., Chatterjee, K., & Schmid, S. (2024). On the
convergence time in graphical games: A locality-sensitive approach. In 27th
International Conference on Principles of Distributed Systems (Vol. 286).
Tokyo, Japan: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.OPODIS.2023.11'
chicago: 'Hirvonen, Juho, Laura Schmid, Krishnendu Chatterjee, and Stefan Schmid.
“On the Convergence Time in Graphical Games: A Locality-Sensitive Approach.” In
27th International Conference on Principles of Distributed Systems, Vol.
286. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2024. https://doi.org/10.4230/LIPIcs.OPODIS.2023.11.'
ieee: 'J. Hirvonen, L. Schmid, K. Chatterjee, and S. Schmid, “On the convergence
time in graphical games: A locality-sensitive approach,” in 27th International
Conference on Principles of Distributed Systems, Tokyo, Japan, 2024, vol.
286.'
ista: 'Hirvonen J, Schmid L, Chatterjee K, Schmid S. 2024. On the convergence time
in graphical games: A locality-sensitive approach. 27th International Conference
on Principles of Distributed Systems. OPODIS: Conference on Principles of Distributed
Systems, LIPIcs, vol. 286, 11.'
mla: 'Hirvonen, Juho, et al. “On the Convergence Time in Graphical Games: A Locality-Sensitive
Approach.” 27th International Conference on Principles of Distributed Systems,
vol. 286, 11, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2024, doi:10.4230/LIPIcs.OPODIS.2023.11.'
short: J. Hirvonen, L. Schmid, K. Chatterjee, S. Schmid, in:, 27th International
Conference on Principles of Distributed Systems, Schloss Dagstuhl - Leibniz-Zentrum
für Informatik, 2024.
conference:
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