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SEMINARS

Iskovskikh Seminar
May 14, 2020 18:00, Moscow, online


Jordan and almost fixed point properties for topological manifolds

Ignasi Mundet i Riera

Universitat de Barcelona


https://youtu.be/fg28ykIpG9E

Abstract: I will explain recent results on the Jordan property for homeomorphism groups that generalize most of the presently known results about Jordan diffeomorphism groups. A crucial ingredient in these results is a recent theorem of Csikós, Pyber and Szabó. I will also talk about the following application. Let X be a compact topological manifold, possibly with boundary, with nonzero Euler characteristic. Then there exists a constant $C$ such that for any continuous action of any finite group $G$ on $X$ there is a point in $X$ whose stabilizer has index in $G$ not bigger than $C$.

Language: English


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