Moment Graphs (3rd of 3 lectures)
by Geordie Williamson
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: email@example.com