Heilbronn Colloquium 2022: Goulnara Arzhantseva16 Jun 2022, by Events in
13 July 2022 at 16.00
Organised in collaboration with the School of Mathematics, University of Bristol, UK
Approximations of Infinite Groups
Goulnara Arzhantseva, University of Vienna, Austria
We discuss various still open questions on approximations of finitely generated groups, focusing on finite-dimensional approximations such as residual finiteness and soficity. We survey our results on the existence and stability of metric approximations. We suggest a few conjectures, e.g. on Gromov hyperbolic groups and their infinite monster limits. The setting is rather general and the involved concepts are transversal to various areas of mathematics.
Based on joint works with Liviu Paunescu (Bucharest).
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