Acylindrical actions for two-dimensional Artin groups of hyperbolic type
Group Theory
2021-03-03 v3
Abstract
For a two-dimensional Artin group whose associated Coxeter group is hyperbolic, we prove that the action of on the hyperbolic space obtained by coning off certain subcomplexes of its modified Deligne complex is acylindrical. Moreover, if for each there is with , then this action is universal. As a consequence, for , if is irreducible, then it is acylindrically hyperbolic. We also obtain the Tits alternative for , and we classify the subgroups of that virtually split as a direct product. A key ingredient in our approach is a simple criterion to show the acylindricity of an action on a two-dimensional complex.
Cite
@article{arxiv.1906.03154,
title = {Acylindrical actions for two-dimensional Artin groups of hyperbolic type},
author = {Alexandre Martin and Piotr Przytycki},
journal= {arXiv preprint arXiv:1906.03154},
year = {2021}
}
Comments
Final accepted version