English

High dimensional hyperbolic Coxeter groups that virtually fiber

Geometric Topology 2025-09-17 v2 Group Theory

Abstract

This paper provides an iterative procedure for constructing hyperbolic Coxeter groups that virtually fiber over Z\mathbb{Z} that is flexible enough to yield infinitely many isomorphism classes in each virtual cohomological dimension (vcd) n2n\geq 2. Our procedure combines results of Jankiewicz, Norin, and Wise with a generalization of a construction due to Osajda involving a new simplicial thickening process. We also give a topological argument showing that the vcd of the right-angled Coxeter groups produced by our construction increases by exactly one with each iteration, guaranteeing that our process produces examples of every vcd.

Keywords

Cite

@article{arxiv.2502.12906,
  title  = {High dimensional hyperbolic Coxeter groups that virtually fiber},
  author = {Jean-Francois Lafont and Barry Minemyer and Gangotryi Sorcar and Matthew Stover and Joseph Wells},
  journal= {arXiv preprint arXiv:2502.12906},
  year   = {2025}
}

Comments

Minor corrections and edits. To appear in Math. Ann

R2 v1 2026-06-28T21:48:49.025Z