Combinatorics Seminar 2018

Speaker: Anatoly Vershik, St. Petersburg State University

Date: Fri, Nov 23, 2018

Time: 14:00 - 15:30

Venue: Middle Meeting Room

Title: New theory of random walks on the groups: Graded graphs approach, absolute


Classical theory of random walks on the groups contains as important point the study of the limit behavior of trajectories and notion of Poisson-Furstenberg boundary.

The new approach allows to generalize that theory and introduce so-called “absolute” --- as a new boundary of the random walks. We will illustrate this with examples of Free group and Heisenberg group. We will discuss relevant probabilitic, algebraic and combinatorial problems.

Slides: View slides