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Taipei Postdoc Seminar
 
11:00 - 12:30, May 15, 2019 (Wednesday)
R201, Astronomy-Mathematics Building, NTU
(台灣大學天文數學館 201室)
Cohomological Hall Algebras and Sheaves on Surfaces
Sasha Minets (IST Austria)

Abstract:

I will start with a quick survey of classical and cohomological Hall algebras. For that, I will recall how combinatorics of the Hilbert scheme of points on a plane are governed by the action of elliptic Hall algebra. In the second part of the talk, I will explain how certain aspects of this story can be generalized to the moduli spaces of sheaves on other surfaces, such as cotangent bundle to a curve.


 

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