English

Finite approximations of countable metric and ultrametric compacta

General Topology 2024-12-20 v1 Geometric Topology

Abstract

Adapting a homotopy reconstruction theorem for general metric compacta, we show that every countable metric or ultrametric compact space can be topologically reconstructed as the inverse limit of a sequence of finite T0T_0 spaces which are finer approximations of the space.

Keywords

Cite

@article{arxiv.2412.14325,
  title  = {Finite approximations of countable metric and ultrametric compacta},
  author = {Diego Mondéjar},
  journal= {arXiv preprint arXiv:2412.14325},
  year   = {2024}
}