Institute of Mathematics


Modul:   MAT760  Ergodic theory and dynamical systems seminar

Non-conical strictly convex divisible sets are maximally anisotropic

Talk by Prof. Dr. Carlos Matheus Silva Santos

Date: 10.04.24  Time: 13.30 - 14.30  Room: ETH HG G 19.1

Let U be a non-conical strictly convex divisible set. Even though the boundary S of U is not C^2, Benoist showed that S is C^1+ and Crampon established that S has a sort of anisotropic Holder regularity -- described by a list L of real numbers -- at almost all of its points. In this talk, we discuss our joint work with P. Foulon and P. Hubert showing that S is maximally anisotropic in the sense that the list L contains no repetitions thanks to the features of the Hilbert flow. ''