English

Nielsen methods and groups acting on hyperbolic spaces

Group Theory 2007-05-23 v1 Geometric Topology

Abstract

We show that for any positive integer nn there exists a constant C(n)>0C(n)>0 such that any nn-generated group GG, which acts by isometries on a δ\delta-hyperbolic space (with δ>0\delta>0), is either free or has a nontrivial element with translation length at most δC(n)\delta C(n).

Keywords

Cite

@article{arxiv.math/0203014,
  title  = {Nielsen methods and groups acting on hyperbolic spaces},
  author = {Ilya Kapovich and Richard Weidmann},
  journal= {arXiv preprint arXiv:math/0203014},
  year   = {2007}
}