English

Property $\mathrm{(NL)}$ in Coexeter groups

Group Theory 2024-04-25 v1 General Topology

Abstract

A group has Property (NL)\mathrm{(NL)} if it does not admit a loxodromic element in any hyperbolic action. In other words, a group with this property is inaccessible for study from the perspective of hyperbolic actions. This property was introduced by Balasubramanya, Fournier-Facio and Genevois, who initiated the study of this property. We expand on this research by studying Property (NL)\mathrm{(NL)} in Coxeter groups, a class of groups that are defined by an underlying graph. One of our main results show that a right-angled Coxeter group (RACG) has Property (NL)\mathrm{(NL)} if and only if its defining graph is complete. We then move beyond the right-angled case to show that if a defining graph is disconnected, its corresponding Coxeter group does not have Property (NL)\mathrm{(NL)}. Lastly, we classify which triangle groups (Coxeter groups with three generators) have Property (NL)\mathrm{(NL)}.

Cite

@article{arxiv.2404.15459,
  title  = {Property $\mathrm{(NL)}$ in Coexeter groups},
  author = {Sahana Balasubramanya and Georgia Burkhalter and Rachel Niebler and Roberta Shapiro},
  journal= {arXiv preprint arXiv:2404.15459},
  year   = {2024}
}

Comments

11 pages, 6 figures

R2 v1 2026-06-28T16:04:26.134Z