Box spaces, expanders, and rigidity
Amenability, coarse embeddability and fixed point properties December 06, 2016 - December 09, 2016
Location: SLMath: Eisenbud Auditorium
expander graph
coarse embedding
expander
Amenability
a-T-menability
fixed point properties
Banach space
group cohomology
hyperbolic groups and generalizations
00A35 - Methodology of mathematics {For mathematics education, see 97-XX}
00B25 - Proceedings of conferences of miscellaneous specific interest
00B55 - Collections of translated articles of miscellaneous specific interest
01-11 - Research data for problems pertaining to history and biography
20E15 - Chains and lattices of subgroups, subnormal subgroups [See also 20F22]
14643
We will present a new construction of a box space of a free group which does not contain coarsely embedded expanders, but does not embed coarsely into Hilbert space. We will also describe a new rigidity result for box spaces of finitely presented groups, and give some applications. This is joint work with Thiebout Delabie
Khukhro Notes
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14643
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