Alternating quotients of right-angled Coxeter groups
Groups, geometry, and dynamics, Tome 15 (2021) no. 3, pp. 965-987
Voir la notice de l'article provenant de la source EMS Press
Let W be a right-angled Coxeter group corresponding to a finite non-discrete graph G with at least 3 vertices. Our main theorem says that Gc is connected if and only if for any infinite index convex-cocompact subgroup H of W and any finite subset {γ1,...,γn}⊂W∖H there is a surjection f from W to a finite alternating group such that f(γi)∈/f(H). A corollary is that a right-angled Artin group splits as a direct product of cyclic groups and groups with many alternating quotients in the above sense.
Classification :
20-XX
Mots-clés : Right-angled Artin groups, right-angled Coxeter groups, surface groups, residual properties
Mots-clés : Right-angled Artin groups, right-angled Coxeter groups, surface groups, residual properties
Affiliations des auteurs :
Michal Buran  1
Michal Buran. Alternating quotients of right-angled Coxeter groups. Groups, geometry, and dynamics, Tome 15 (2021) no. 3, pp. 965-987. doi: 10.4171/ggd/617
@article{10_4171_ggd_617,
author = {Michal Buran},
title = {Alternating quotients of right-angled {Coxeter} groups},
journal = {Groups, geometry, and dynamics},
pages = {965--987},
year = {2021},
volume = {15},
number = {3},
doi = {10.4171/ggd/617},
url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/617/}
}
Cité par Sources :