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arXiv · 1308.1318

Irreducible lattices, invariant means, and commensurating actions

Yves Cornulier
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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.

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Yves Cornulier. 2020-05-02. Irreducible lattices, invariant means, and commensurating actions. https://doi.org/10.1007/s00209-014-1355-x

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