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SUMMARY:Vadim Alekseev (Technische Universität Dresden)
DTSTART:20211110T200000Z
DTEND:20211110T210000Z
DTSTAMP:20260420T052656Z
UID:NYC-NCG/76
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NYC-NCG/76/"
 >Geometry of sofic approximations</a>\nby Vadim Alekseev (Technische Unive
 rsität Dresden) as part of Noncommutative geometry in NYC\n\n\nAbstract\n
 In the recent years\, there has been substantial activity\nconnecting grap
 h theory and group theory via the concept of a metric\napproximation of an
  infinite group by finite objects (groups or\ngraphs)\, particularly aroun
 d sofic groups. This lead to numerous\nresults which describe approximatio
 n properties of the group (for\ninstance\, amenability or Haagerup propert
 y) in terms of geometric\nproperties of its approximations (e.g. hyperfini
 teness or coarse\nembeddability in a Hilbert space of a graph sequence). I
 n this talk\, I\nwill describe these connections between the two worlds (g
 roups and\ngraphs) and some recent results around them.\n
LOCATION:https://researchseminars.org/talk/NYC-NCG/76/
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