A condition that prevents groups from acting nontrivially on trees
Group Theory
2009-04-09 v1
Abstract
We describe a simple criterion for showing that a group has Serre's property FA. By exhibiting a certain pattern of finite subgroups, we show that this criterion is satisfied by Aut(F_n) and SL(n,Z) when n>=3.
Cite
@article{arxiv.0904.1384,
title = {A condition that prevents groups from acting nontrivially on trees},
author = {Martin R Bridson},
journal= {arXiv preprint arXiv:0904.1384},
year = {2009}
}
Comments
This is the version published by Geometry & Topology Monographs on 29 April 2008