Tel Aviv University Dear all, This week at the Horowitz seminar on Probability, Ergodic Theory and Dynamical Systems at Tel Aviv University we are happy to have Speaker: Omer Tamuz, Weizmann Institute Title: The Furstenberg Entropy Realization Problem Date: Monday, April 22 Time: 14:30 Place: Schreiber 309 Abstract: Random walks on groups and harmonic functions on groups are intimately related to a generalization of measure preserving group actions called "stationary group actions". An important invariant of stationary group actions is their Furstenberg Entropy. The Furstenberg Entropy realization problem is the question of determining the range of possible entropy values realizable for a given random walk. The talk will include an introduction to this field, an overview of what (little) is known, and some new results. Joint work with Yair Hartman. Best regards, Ron Seminar webpage: <http://www.math.tau.ac.il/~peledron/Horowitz_seminar/Horowitz_seminar.html> --------------------------------------------------------- Technion Math Net-2 (TECHMATH2) Editor: Michael Cwikel <techm@math.technion.ac.il> Announcement from: Ron Peled <peledron@post.tau.ac.il>