Dynamical Systems Seminar

Title: Random walks on tori and an application to normality of numbers in self-similar sets.
Speaker: Yiftah Dayan
Speaker Info: Tel Aviv University
Brief Description:
Special Note:

We show that under certain conditions, random walks on a d-dim torus by affine expanding maps have a unique stationary measure which is Haar measure. In this case, one may deduce that for every starting point in the torus, almost every trajectory of the random walk is equidistributed w.r.t. Haar measure. As an application of this result, we show that given an IFS of contracting similarity maps of the real line with a uniform contraction ratio 1/D, where D is some integer > 1, under some suitable condition, almost every point in the attractor of the given IFS (w.r.t. a natural measure) is normal to base D.

Joint work with Arijit Ganguly and Barak Weiss.

Date: Tuesday, January 14, 2020
Time: 2:30pm
Where: Lunt 105
Contact Person: Ilya Khayutin
Contact email: khayutin@northwestern.edu
Contact Phone:
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