Approximations of stable actions on $ \Bbb {R} $-trees
Approximations of stable actions on
$ \Bbb {R} $-trees
复制标题
$ Bbb {R} $-树上稳定动作的近似
DOI:
10.1007/s000140050047
复制
发表时间:
1998
影响因子:
0.9
通讯作者:
Vincent Guirardel
中科院分区:
文献类型:
--
作者:
Vincent Guirardel
This article shows how to approximate astableaction of a finitely presented group on an-tree by asimplicialone while keeping control over arc stabilizers. For instance, every small action of a hyperbolic group on an-tree can be approximated by a small action of the same group on asimplicialtree. The techniques we use highly rely on Rips's study of stable actions on-trees and on the dynamical study of exotic components by D. Gaboriau.