School Seminars and Colloquia

Moment Graphs (3rd of 3 lectures)

Algebra/Geometry/Topology Seminar

by Geordie Williamson

Institution: Oxford University
Date: Fri 10th June 2011
Time: 2:00 PM
Location: Room 213, Richard Berry Building, The University of Melbourne

Abstract: Equivariant localisation is a powerful tool in topology. The motivating principle is that cohomological information about a space with the Lie group action is often encoded in the fixed points under a maximal torus. This course will be an introduction to these ideas, with particular emphasis on the case of Grassmannians, flag varieties and their Schubert varieties. A rough schedule (which will be modified based on the audience's background) is:
Third lecture: equivariant intersection cohomology, sketch of relevance to representation theory, the Braden-MacPherson algorithm.

For More Information: contact: Arun Ram. email: