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Joint Harvard-CUHK-YMSC Differential Geometry Seminar

DIFFERENTIAL GEOMETRY

December 1, 2021      3:00 am
Speaker: Nigel Hitchin - University of Oxford

will speak on: Lagrangians and mirror symmetry in the Higgs bundle moduli space The talk concerns recent work with Tamas Hausel in asking how SYZ mirror symmetry works for the...
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Joint Harvard-CUHK-YMSC Differential Geometry Seminar

SEMINARS, DIFFERENTIAL GEOMETRY

November 24, 2021      4:00 pm
Speaker: Nick Sheridan - School of Mathematics, University of Edinburgh

will speak on: Quantum cohomology as a deformation of symplectic cohomology Let X be a compact symplectic manifold, and D a normal crossings symplectic divisor in X. We give a...
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Joint Harvard-CUHK-YMSC Differential Geometry Seminar

DIFFERENTIAL GEOMETRY

November 10, 2021      3:00 am
Speaker: Richard Thomas - Department of Mathematics, Imperial College London

will speak on: Higher rank DT theory from rank 1 Fix a Calabi-Yau 3-fold X. Its DT invariants count stable bundles and sheaves on X. The generalised DT invariants of...
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Joint Harvard-CUHK-YMSC Differential Geometry Seminar

DIFFERENTIAL GEOMETRY

October 13, 2021      4:00 pm
Speaker: Professor Jason D. Lotay - University of Oxford

will speak on: "Some remarks on contact Calabi-Yau 7-manifolds" Wednesday, October 13, 2021 4:00 - 5:00 PM  *Hong Kong time* 4:00 - 5:00 AM *Eastern Time* Abstract: In geometry and...
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Joint Harvard-CUHK-YMSC Differential Geometry Seminar

DIFFERENTIAL GEOMETRY

October 6, 2021      9:30 pm
Speaker: Professor Mutao Wang - Columbia University

will speak on: "Angular momentum in general relativity" Tuesday, October 5, 2021 9:30 - 10:30 AM  *Hong Kong time* 9:30 - 10:30 PM *Eastern Time* Abstract: The definition of angular momentum...
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An algebraic model for smoothing Calabi-Yau varieties

DIFFERENTIAL GEOMETRY

May 4, 2021      9:00 pm
Speaker: Kwokwai Chan - Chinese University of Hong Kong

We are interested in smoothing of a degenerate Calabi-Yau variety or a pair (degenerate CY, sheaf). I will explain an algebraic framework for solving such smoothability problems. The idea is...
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Group actions and stability on elliptic surfaces

DIFFERENTIAL GEOMETRY

April 20, 2021      9:00 pm
Speaker: Jason Lo - CSUN

There are two natural group actions on the Bridgeland stability manifold of a triangulated category: a left action by the group of autoequivalences, and a right action by the universal...
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Quasimodular forms from Betti numbers

DIFFERENTIAL GEOMETRY

April 6, 2021      8:00 am
Speaker: Pierrick Bousseau - ETH

This talk will be about refined curve counting on local P^2, the noncompact Calabi-Yau 3-fold total space of the canonical line bundle of the projective plane. I will explain how...
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