PSU Mark
Eberly College of Science Mathematics Department

Meeting Details

For more information about this meeting, contact Thomas Barthelme, Mari Royer, Anatole Katok, Federico Rodriguez Hertz, Dmitri Burago.

Title:Special representations of group actions and low complexity tilings of groups
Seminar:Dynamical systems seminar
Speaker:Ayse Sahin, DePaul University
Abstract:
Generalizing a result of Alpern, Rudolph showed that the orbits of any measurable, measure preserving R^d action can be measurably tiled by 2^d rectangles and asked if this number of tiles is optimal. In joint work with B. Kra and A. Quas, we show that d+1 tiles suffice. Furthermore, for flows with completely positive entropy, this bound is optimal.

Room Reservation Information

Room Number:MB114
Date:02 / 10 / 2014
Time:03:35pm - 05:35pm