[Binghamton Geometry/Topology Seminar] Peter Hilton Memorial Lecture

[Tam Nguyen Phan]

Peter Hilton Memorial Lecture

   Date: Thursday, April 23rd, 2015

   Time:  3.00 pm

   Place:  Science II - 140. Reception to follow at 4:30 in the President's
Reception Room in the Anderson Performing Center. All are invited.

   Speaker: Ralf Spatzier (University of Michigan)

   Title:  Higher Rank in Geometry and Dynamics - How isometric and
hyperbolic behavior force rigidity

   Abstract: Higher rank phenomena have led to surprising rigidity results
in group theory, geometry and dynamics. Examples start with Margulis
superrigidity theorem for lattices in higher rank semisimple Lie groups,
followed by the classification of nonpositively curved Riemannian manifolds
with lots of flats. In recent years similar phenomena have been found in
dynamics, in particular in the classification of hyperbolic actions on tori
and nilmanifolds of higher rank Abelian groups and their measure rigidity.
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