Kazhdan-Margulis theorem for Invariant Random Subgroups
Group Theory
2017-06-20 v4
Abstract
Given a simple Lie group , we show that the lattices in are weakly uniformly discrete. This is a strengthening of the Kazhdan-Margulis theorem. Our proof however is straightforward --- considering general IRS rather than lattices allows us to apply a compactness argument. In terms of p.m.p. actions, we show that for every there is an identity neighbourhood which intersects trivially the stabilizers of of the points in every non-atomic -space.
Keywords
Cite
@article{arxiv.1510.05423,
title = {Kazhdan-Margulis theorem for Invariant Random Subgroups},
author = {Tsachik Gelander},
journal= {arXiv preprint arXiv:1510.05423},
year = {2017}
}
Comments
4 pages