Connectivity degrees of complements of closed sets in continua
General Topology
2024-03-26 v1
Abstract
In the literature, various types of points and meager sets whose complements are connected have been studied, such as colocally connected points, non-weak cut points/sets, non-block points/sets, shore points/sets, etc. We extend that study, in the following way: considering a continuum and a natural number , we investigate sets meeting the criterion that has at most components, and we introduce degrees of connectivity of the complement of . When and is meager or singleton, these new definitions are equivalent to the known definitions of non-cut points/sets.
Cite
@article{arxiv.2403.15595,
title = {Connectivity degrees of complements of closed sets in continua},
author = {Mauricio Chacón-Tirado and César Piceno},
journal= {arXiv preprint arXiv:2403.15595},
year = {2024}
}