@article{9465,
abstract = {Given a locally finite set πββπ and an integer πβ₯0, we consider the function π°π:Delπ(π)ββ on the dual of the order-k Voronoi tessellation, whose sublevel sets generalize the notion of alpha shapes from order-1 to order-k (Edelsbrunner et al. in IEEE Trans Inf Theory IT-29:551β559, 1983; Krasnoshchekov and Polishchuk in Inf Process Lett 114:76β83, 2014). While this function is not necessarily generalized discrete Morse, in the sense of Forman (Adv Math 134:90β145, 1998) and Freij (Discrete Math 309:3821β3829, 2009), we prove that it satisfies similar properties so that its increments can be meaningfully classified into critical and non-critical steps. This result extends to the case of weighted points and sheds light on k-fold covers with balls in Euclidean space.},
author = {Edelsbrunner, Herbert and Nikitenko, Anton and Osang, Georg F},
issn = {14208997},
journal = {Journal of Geometry},
number = {1},
publisher = {Springer Nature},
title = {{A step in the Delaunay mosaic of order k}},
doi = {10.1007/s00022-021-00577-4},
volume = {112},
year = {2021},
}