Exponential decay of matrix coefficients.
Introductory Workshop: Geometric and Arithmetic Aspects of Homogeneous Dynamics February 02, 2015 - February 06, 2015
Location: MSRI: Simons Auditorium
Primary Mathematics Subject Classification No Primary AMS MSC Secondary Mathematics Subject Classification No Secondary AMS MSC
For a simple Lie group G and a discrete subgroup Gamma of G, we will discuss exponential decay of the matrix coefficients of G associated to functions on the quotient space Gamma\G. When G is of rank one, and Gamma is a lattice, this yields exponential mixing of the geodesic flow for the associated Riemannian manifold. We will also discuss a uniform exponential decay for congruence subgroups of Gamma when Gamma is contained in an arithmetic subgroup of G.
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