Abstract |
Exactness is a weak version of amenability for discrete groups. It can be
described in geometric, analytic or dynamical terms and has numerous
applications. The most striking one was proved by Yu: exact groups satisfy
the coarse Baum-Connes conjecture and consequently, the Novikov conjecture.
For this reason exactness has recently become popular in areas such as
geometric group theory, operator algebras or index theory.
|
For future talks or to be added to the mailing list: www.math.uh.edu/colloquium