A simultaneous version of Host's equidistribution Theorem

Dynamical Systems Seminar

Meeting Details

For more information about this meeting, contact Kristin Berrigan, Svetlana Katok, Kurt Vinhage.

Speaker: Amir Algom, Penn State

Abstract: Let q,m>1 be coprime integers. In 1995 Host proved that if P is a times q invariant ergodic measure with positive entropy, then P almost every x is normal to base m. This result , which is closely related to Furstenberg's times 2, times 3 Conjecture, was later extended by Lindenstrauss to the case when q does not divide any power of m. Recently, Hochman and Shmerkin showed that it holds in the "correct" generality, i.e. assuming only that q and m are independent. We further extend this result, showing that for P typical x the orbit of (x,x) under the diagonal toral endomorphism (times q, times m) equidistributes for the product measure of P with the Lebesgue measure.

Room Reservation Information

Room Number: 114 McAllister

Date: 09/23/2019

Time: 3:40pm - 4:40pm