Geometry, Topology and Dynamics Seminar

Asaf Katz
University of Chicago
Sparse equidistribution in unipotent flows
Abstract: Equidistribution problems, originating from the classical works of Kronecker, Hardy and Weyl about equidistribution of sequences mod 1, are of major interest in modern number theory.
We will discuss how some of those problems relate to unipotent flows and present a conjecture by Margulis, Sarnak and Shah regarding an analogue of those results for the case of the horocyclic flow over a Riemann surface. Moreover, we provide evidence towards this conjecture by bounding from above the Hausdorff dimension of the set of points which do not equidistribute.
The talk will be accessible, no prior knowledge is assumed.
Monday October 16, 2017 at 3:00 PM in SEO 636
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