English

Path connectedness, local path connectedness and contractibility of $\mathcal{S}_c(X)$

General Topology 2018-02-05 v1

Abstract

The hyperspace of all nontrivial convergent sequences in a Hausdorff space XX is denoted by Sc(X)\mathcal{S}_c(X). This hyperspace is endowed with the Vietoris topology. In connection with a question and a problem by Garc\'ia-Ferreira, Ortiz-Castillo and Rojas-Hern\'andez, concerning conditions under which Sc(X)\mathcal S_c(X) is pathwise connected, in the current paper we study the latter property and the contractibility of Sc(X)\mathcal{S}_c(X). We present necessary conditions on a space XX to obtain the path connectedness of Sc(X)\mathcal{S}_c(X). We also provide some sufficient conditions on a space XX to obtain such path connectedness. Further, we characterize the local path connectedness of Sc(X)\mathcal{S}_c(X) in terms of that of XX. We prove the contractibility of Sc(X)\mathcal{S}_c(X) for a class of spaces and, finally, we study the connectedness of Whitney blocks and Whitney levels for Sc(X)\mathcal{S}_c(X).

Cite

@article{arxiv.1802.00725,
  title  = {Path connectedness, local path connectedness and contractibility of $\mathcal{S}_c(X)$},
  author = {Javier Camargo and David Maya and Patricia Pellicer-Covarrubias},
  journal= {arXiv preprint arXiv:1802.00725},
  year   = {2018}
}
R2 v1 2026-06-23T00:08:53.135Z