PIMS UAlberta Distinguished Speaker: Hanfeng Li

• Date: 09/21/2016
• Time: 15:00
Lecturer(s):
Hanfeng Li, SUNY at Buffalo
Location:

University of Alberta

Topic:

Sofic Entropy

Description:

Entropy is one of the most important invariants in dynamical systems, in both measure-theoretic and topological settings. The original Kolmogorov-Sinai entropy was introduced for integer group actions in the late 1950s and extended to amenable group actions in the 1970s.

After the break-through of Lewis Bowen in 2010, there is now a well-founded theory of entropy for actions of sofic groups. I will discuss the definition of sofic entropy, its application to Gottschalk's surjunctivity conjecture, and connection to the Fuglede-Kadison determinant in operator algebras.

Other Information:

Location: CAB 369