Recent progress on rigity properties of higher rank diagonalizable actions and applications

Abstract

The rigidity propeties of higher rank diagonalizable actions is a major theme in homogenous dynamics, with origins in work of Cassels and Swinnerton-Dyer in the 1950s and Furstenberg. We survey both results and conjectures regarding such actions, with emphasize on the applications of these results towards understanding the distribution of integer points on varieties, quantum unique ergodicity, and Diophantine approximations.

Dedicated to G.A. Margulis. 46 pages

References in corpus (2)

• Equidistribution of divergent orbits and continued fraction expansion of rationals
• Arithmetic of Double Torus Quotients and the Distribution of Periodic Torus Orbits