English

Every countable compact subset of $\mathbb{S}^n$ is tame

Geometric Topology 2022-08-25 v1 General Topology

Abstract

We prove that any two countable, compact, subsets of Sn,n2\mathbb{S}^n, n\geq 2 that are homeomorphic also have homeomorphic complements. Thus any wild subspace like the classical construction of Antoine must contain a Cantor set.

Keywords

Cite

@article{arxiv.2208.11534,
  title  = {Every countable compact subset of $\mathbb{S}^n$ is tame},
  author = {Agelos Georgakopoulos},
  journal= {arXiv preprint arXiv:2208.11534},
  year   = {2022}
}
R2 v1 2026-06-25T01:56:03.811Z