PSU Mark
Eberly College of Science Mathematics Department

Meeting Details

For more information about this meeting, contact Nigel Higson.

Title:Amenability and Ramsey theory
Seminar:Noncommutative Geometry Seminar
Speaker:John Roe, Penn State
Abstract:
I'll summarize the machinery behind a recent attempt by Justin Tatch Moore, a logician at Cornell, to prove the amenability of Thompson's group. While this attempt was unsuccessful, the mechanism by which Moore relates amenability to Ramsey theory - roughly, the branch of logic that proves theorems of the form "large multicolored structures have fairly large monochromatic substructures" - is interesting in itself and yields some surprising results about amenable groups.

Room Reservation Information

Room Number:MB106
Date:03 / 28 / 2013
Time:02:30pm - 03:30pm