GGT Seminar: Vadim Alekseev (TU Dresden): Geometry of sofic approximations.
Thursday, 13.01.2022 15:00 im Raum SRZ 216/217
In the recent years, there has been substantial activity
connecting graph theory and group theory via the concept of a metric
approximation of an infinite group by finite objects (groups or
graphs), particularly around sofic groups. This lead to numerous
results which describe approximation properties of the group (for
instance, amenability or Haagerup property) in terms of geometric
properties of its approximations (e.g. hyperfiniteness or coarse
embeddability in a Hilbert space of a graph sequence). In this talk, I
will describe these connections and some recent results around them.
Angelegt am Friday, 19.11.2021 10:25 von Giles Gardam
Geändert am Friday, 07.01.2022 12:26 von Elke Enning
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