|COMPUTER SCIENCE/DISCRETE MATH II|
|Topic:||Representation Theory and Expansion in Groups|
|Affiliation:||Professor, School of Mathematics|
|Date:||Tuesday, January 26|
|Time/Room:||10:30am - 12:30pm/S-101|
In this survey lecture (which will continue on Tue Feb 2) I plan to explain basic aspects of the representation theory of finite groups, and how these are applied to various questions regarding expansion and random walks on groups. These applications include - Expanding generators in every group (Alon-Roichman, Xiao-Wigderson) - Inhomogeneous random walks on non-Abelian groups (Gowers, Babai-Nikolov-Pyber) - Shuffling of cards ( Diaconis-Shahshahani) - Expansion in solvable groups (Meshulam-Wigderson) - Dimension expanders (Lubotzky-Zelmanov) No special background in group theory will be assumed.