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arXiv · 1809.05015

Schlichting's Theorem for Approximate Subgroups

Tingxiang Zou
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Abstract

We prove Schlichting's theorem for approximate subgroups: if $\mathcal{X}$ is a uniform family of commensurable approximate subgroups in some ambient group, then there exists an invariant approximate subgroup commensurable with $\mathcal{X}$.

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Tingxiang Zou. 2018-09-13. Schlichting's Theorem for Approximate Subgroups. https://doi.org/10.1007/s00013-020-01435-6

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