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
Vincent Guirardel
中科院分区:
数学2区
文献类型:
--
作者:
Vincent Guirardel

文献摘要

被引文献

相似文献

本文介绍了如何在保持对稳弧器控制的同时,用一个简单的方法来近似一个在一棵树上出现的群的稳定作用。例如,一个双曲群在一棵树上的每一个小作用都可以近似为同一群在一棵单纯树上的一个小作用。我们使用的技术高度依赖于Rips对树上稳定作用的研究和D。加博里奥
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.