English

Edge Inversions in $(P_k)$-closed Groups

Group Theory 2026-01-28 v1 Combinatorics

Abstract

We construct (P2)(P_2)-closed groups acting on T3T_3 in which all edge inversions have infinite order. This provides a negative answer to a question posed by Tornier. We also construct a family of (P2)(P_2)-closed groups for which the smallest order of an edge inversion is an arbitrarily high finite number.

Keywords

Cite

@article{arxiv.2601.18982,
  title  = {Edge Inversions in $(P_k)$-closed Groups},
  author = {Kirwin Hampshire and Florian Lehner and Andrew Wood},
  journal= {arXiv preprint arXiv:2601.18982},
  year   = {2026}
}
R2 v1 2026-07-01T09:21:16.703Z