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Rademacher Lectures

Wednesday, April 5, 2017 - 3:30pm

Lisa Jeffrey

University of Toronto


University of Pennsylvania


The space of gauge equivalence classes of flat connections on a 2-manifold of genus g≥2 has attracted a great deal of attention in the mathematical literature since the landmark 1982 paper of Atiyah and Bott.  It is a finite-dimensional symplectic manifold of dimension 6g − 6. I will describe Atiyah and Bott’s results on its Betti numbers as well as results on the ring structure of the cohomology (due to myself and Frances Kirwan, following Witten.


Slides from lecture 1.