[geometry-ml:03442] MS seminar at Kavli IPMU -- Pedram Hekmati (U Auckland) -- Aug 28, 2018

[Todor Milanov]

Dear all,

I would like to announce the following Mathematics and String theory seminar at Kavli IPMU

Speaker:	Pedram Hekmati (U Auckland)
Date:	Tue, Aug 28, 2018, 13:15 - 14:45
Place:	Seminar Room A


Title: A quantum refinement of equivariant cohomology

Abstract: The Duflo homomorphism quantizes the Poisson algebra of symmetric polynomials on a Lie algebra to the enveloping algebra, in such a way that the restriction to the centers is a ring isomorphism. In this talk I will first review the Duflo homomorphism and its relation to equivariant cohomology. I will then introduce a refinement of equivariant cohomology based on the universal affine vertex algebra and discuss some applications. Interestingly this construction only works at the critical level, where the vertex algebra acquires a non-trivial center.

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Todor Eliseev Milanov
Associate Professor 
Kavli IPMU,  Japan

todor.milanov ＠ ipmu.jp