English

Fixed Point Sets in Diagrammatically Reducible Complexes

Group Theory 2021-07-09 v2 Geometric Topology

Abstract

Let HH be a group acting on a simply-connected diagrammatically reducible combinatorial 2-complex XX with fine 1-skeleton. If the fixed point set XHX^ H is non-empty, then it is contractible. Having fine 1-skeleton is a weaker version of being locally finite.

Keywords

Cite

@article{arxiv.2107.01254,
  title  = {Fixed Point Sets in Diagrammatically Reducible Complexes},
  author = {Shivam Arora and Eduardo Martínez-Pedroza},
  journal= {arXiv preprint arXiv:2107.01254},
  year   = {2021}
}

Comments

Version 2. Some minor typos were corrected

R2 v1 2026-06-24T03:51:20.058Z