### Complex Hyperbolic Lattices

Geometry and Topology Seminar

31st May 2022, 2:00 pm – 3:00 pm

Fry Building, 2.04

Lattices in SU(2,1) can be viewed in several different ways: via their geometry as holomorphic complex hyperbolic isometries, as monodromy groups of hypergeometric functions, via algebraic geometry as ball quotients and (sometimes) using arithmeticity.

In this talk I will describe these different points of view using examples constructed by Deligne and Mostow and by Deraux, Paupert and myself.

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