Irreducible lattices, invariant means, and commensurating actions
Group Theory
2020-05-05 v3
Abstract
We study rigidity properties of lattices in terms of invariant means and commensurating actions (or actions on CAT(0) cube complexes). We notably study Property FM for groups, namely that any action on a discrete set with an invariant mean has a finite orbit.
Keywords
Cite
@article{arxiv.1308.1318,
title = {Irreducible lattices, invariant means, and commensurating actions},
author = {Yves Cornulier},
journal= {arXiv preprint arXiv:1308.1318},
year = {2020}
}
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