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Speaker:

Owen Gwilliam
Affiliation:

MPIM
Date:

Tue, 2018-05-22 10:15 - 12:00
Location:

MPIM Seminar Room The purpose of this talk is to survey the machinery developed

by Costello, with an emphasis on the procedure by which one starts with

an action functional and ends up with higher algebraic structure at the

end. The running example will take as input the curved beta-gamma

system, a 2d sigma model of maps from a Riemann surface to a complex

manifold. I will sketch how to construct its BV quantization and how to

analyze its factorization algebra, which determines a sheaf of vertex

algebras known as "chiral differential operators." The talk aims to be

conversational and not very technical, as I want to communicate the big

picture.

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