Elliptic actions on Teichmuller space
Geometric Topology
2014-12-31 v1 Group Theory
Abstract
Let be an oriented surface of finite type, its mapping class group, and its Teichm\"uller space with the Teichm\"uller metric. Let be a finite subgroup and consider the subset of fixed by , . For any , we prove that the set of points whose -orbits have diameter bounded by , , lives in a bounded neighborhood of . As an application, we show that the orbit of any point under the action of a finite order mapping class has a fixed coarse barycenter. By contrast, we show that need not be quasiconvex with an explicit family of examples.
Cite
@article{arxiv.1412.8559,
title = {Elliptic actions on Teichmuller space},
author = {Matthew Gentry Durham},
journal= {arXiv preprint arXiv:1412.8559},
year = {2014}
}
Comments
32 pages, 2 figures. This paper is part of the author's dissertation. Comments welcome!