English

Amenable covers of right-angled Artin groups

Group Theory 2022-04-05 v1 Algebraic Topology

Abstract

Let ALA_L be the right-angled Artin group associated to a finite flag complex LL. We show that the amenable category of ALA_L equals the virtual cohomological dimension of the right-angled Coxeter group WLW_L. In particular, right-angled Artin groups satisfy a question of Capovilla--L\"oh--Moraschini proposing an inequality between the amenable category and Farber's topological complexity.

Keywords

Cite

@article{arxiv.2204.01162,
  title  = {Amenable covers of right-angled Artin groups},
  author = {Kevin Li},
  journal= {arXiv preprint arXiv:2204.01162},
  year   = {2022}
}

Comments

11 pages, comments welcome

R2 v1 2026-06-24T10:36:17.165Z