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Department of Mathematics,
Department of Mathematics,
University of California San Diego
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Math 211 A00 - Algebra Seminar
Nir Avni
Northwestern University
Model theory of higher rank arithmetic groups
Abstract:
I'll describe a new rigidity phenomenon of lattices in higher rank semisimple groups. Specifically, I'll explain why the theories of such groups can't have (finitely generated) deformations, why these groups have a very rich collection of definable subgroups, and finish by discussing a conjecture saying that being a higher rank arithmetic lattice is a first-order property. Based on joint works with Alex Lubotzky and Chen Meiri.
Host: Alireza Salehi Golsefidy
November 1, 2021
2:00 PM
Meeting ID: 939 5383 2894, Password: structures
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