Homogeneous Dynamics and Geometry in Higher-Rank Lie Groups

Collection Homogeneous Dynamics and Geometry in Higher-Rank Lie Groups

Organizer(s) Martin Bridgeman, Richard Canary, Fanny Kassel, Hee Oh, Maria Beatrice Pozzetti and Jean-François Quint
Date(s) 19/06/2023 - 23/06/2023
linked URL https://indico.math.cnrs.fr/event/8759/
00:00:00 / 00:00:00
5 20

Bowen and Margulis independently proved in the 70s that closed geodesics on compact hyperbolic surfaces equidistribute towards the measure of maximal entropy. From a homogeneous dynamics point of view, this measure is the quotient of the Haar measure on $\mathrm{PSL}(2,\mathbb{R})$ modulo some discrete cocompact sugroup.

In a joint work with Jialun Li, we investigate the higher rank setting of this problem by taking a higher rank Lie group (like $\mathrm{SL}(d,\mathbb{R})$ for $d\geq 3$) and by studying the dynamical properties of geodesic flows in higher rank: the so-called Weyl chamber flows and their induced diagonal action. We obtain an equidistribution formula of periodic tori (instead of closed orbits of the geodesic flow).

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