University of Hong Kong

Mon 20 Aug 2018, 4:00pm
SPECIAL
Algebraic Geometry Seminar
MATH 126

Noncommutative MatherYau theorem and its applications

MATH 126
Mon 20 Aug 2018, 4:00pm5:00pm
Abstract
We prove that the right equivalence class of a super potential in complete free algebra is determined by its Jacobi algebra and the canonical class in its 0th Hochschild homology represented by the super potential, assuming the Jacobi algebra is finite dimensional. This is a noncommutative version of the famous MatherYau theorem in isolated hyper surface singularities. As a consequence, we prove a rigidity theorem for Ginzburg dgalgebra. I will discuss some applications of these results in three dimensional birational geometry. This is a joint work with Guisong Zhou (1803.06128).
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Imperial College London

Mon 10 Sep 2018, 4:00pm
Algebraic Geometry Seminar
TBA

TBA

TBA
Mon 10 Sep 2018, 4:00pm5:00pm
Abstract
TBA
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UCLA

Thu 13 Sep 2018, 4:00pm
SPECIAL
Algebraic Geometry Seminar
TBA

Hodge theory of classifying stacks

TBA
Thu 13 Sep 2018, 4:00pm5:00pm
Abstract
The goal of this talk is to create a correspondence between the representation theory of algebraic groups and the topology of Lie groups. The idea is to study the Hodge theory of the classifying stack of a reductive group over a field of characteristic p, the case of characteristic 0 having been studied by Behrend, Bott, Simpson and Teleman. The approach yields new calculations in representation theory, motivated by topology.
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University of Massachusets

Mon 24 Sep 2018, 4:00pm
Algebraic Geometry Seminar
TBA

TBA

TBA
Mon 24 Sep 2018, 4:00pm5:00pm
Abstract
TBA
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Oregon

Mon 15 Oct 2018, 4:00pm
Algebraic Geometry Seminar
TBA

TBA

TBA
Mon 15 Oct 2018, 4:00pm5:00pm
Abstract
TBA
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