|Date: Tuesday, February 17, 2009
Title: Cohomology of Locally Symmetric Spaces
Abstract: The upper half-plane modulo the action of SL(2,Z) by fractional linear
transformations is the archetypal example of an arithmetically defined
locally symmetric space. These spaces play an important role in geometry, representation theory, and number theory. Associated to a locally symmetric space (and its compactifications) are several types of
cohomology. In the talk I will use the general theme of relating analytic and topological invariants to introduce these compactifications and cohomology theories and motivate results relating them.
Speaker: Les Saper
Institution: Duke University