Not all finitely generated groups have universal acylindrical actions
Group Theory
2016-10-14 v3 Geometric Topology
Abstract
The class of acylindrically hyperbolic groups, which are groups that admit a certain type of non-elementary action on a hyperbolic space, contains many interesting groups such as non-exceptional mapping class groups and for . In such a group, a generalized loxodromic element is one that is loxodromic for some acylindrical action of the group on a hyperbolic space. Osin asks whether every finitely generated group has an acylindrical action on a hyperbolic space for which all generalized loxodromic elements are loxodromic. We answer this question in the negative, using Dunwoody's example of an inaccessible group as a counterexample.
Keywords
Cite
@article{arxiv.1505.02990,
title = {Not all finitely generated groups have universal acylindrical actions},
author = {Carolyn R. Abbott},
journal= {arXiv preprint arXiv:1505.02990},
year = {2016}
}
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6 pages