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SUMMARY:Henry Bradford (University of Cambridge)
DTSTART:20201109T090000Z
DTEND:20201109T100000Z
DTSTAMP:20260423T021229Z
UID:SiN/9
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/SiN/9/">Quan
 titative LEF and topological full groups</a>\nby Henry Bradford (Universit
 y of Cambridge) as part of Symmetry in Newcastle\n\n\nAbstract\nTopologica
 l full groups of minimal subshifts are an important source of exotic examp
 les in geometric group theory\, as well as being powerful invariants of sy
 mbolic dynamical systems. In 2011\, Grigorchuk and Medynets proved that TF
 Gs are LEF\, that is\, every finite subset of the multiplication table occ
 urs in the multiplication table of some finite group. In this talk we expl
 ore some ways in which asymptotic properties of the finite groups which oc
 cur reflect asymptotic properties of the associated subshift. Joint work w
 ith Daniele Dona.\n
LOCATION:https://researchseminars.org/talk/SiN/9/
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