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Title:
Approximations of infinite groups
Speaker:
Abstract:
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, stability and quantification of metric approximations. We suggest a few conjectures, e.g. on Gromov hyperbolic groups and their infinite monster limits.
Based on joint works with Liviu Paunescu (Bucharest).
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