English

Neighboring mapping points theorem

Metric Geometry 2023-10-04 v5 Algebraic Topology Combinatorics Geometric Topology

Abstract

We introduce and study a new family of extensions for the Borsuk-Ulam and topological Radon type theorems. The defining idea for this new family is to replace requirements of the form `a subset that is large in some sense goes to a singleton' with requirements of the milder form `a subset that is large in some sense goes to a subset that is small in some sense'. This approach covers the case of mappings m-sphere to n-space with m<n and extends to wider classes of spaces.

Keywords

Cite

@article{arxiv.1812.10895,
  title  = {Neighboring mapping points theorem},
  author = {Andrei V. Malyutin and Oleg R. Musin},
  journal= {arXiv preprint arXiv:1812.10895},
  year   = {2023}
}

Comments

21 pages, 5 figures

R2 v1 2026-06-23T06:57:41.892Z