Seminar, Lecture, Talk
MATH - Seminar on Pure Mathematics - Counting sheaves on Calabi-Yau 4-folds

We define a localised Euler class for isotropic sections, and isotropic cones, in SO(N) bundles. We use this to give an algebraic definition of Borisov-Joyce's sheaf counting invariants on Calabi-Yau 4-folds.

28
Oct 2020
Seminar, Lecture, Talk
CHEM Seminar - Recent Advances in Halogenation Reactions

Speaker: Professor Ying Yeung YEUNG

Institution: Department of Chemistry, Chinese University of Hong Kong

Hosted by: Professor Jianwei SUN

27
Oct 2020
Seminar, Lecture, Talk
PHYS Seminar - Expert Sharing Seminar
19
Oct 2020
Seminar, Lecture, Talk
PHYS Seminar - Collective Motion of Active Matter in Confinement
08
Oct 2020
CHEM Seminar - Catalytic Enantioselective Redox-Neutral Reactions and Divergent Heterocycle Syntheses

Speaker: Professor Yu ZHAO

Institution: Department of Chemistry, National University of Singapore

Hosted by: Professor Jianwei SUN

06
Oct 2020
Seminar, Lecture, Talk
PHYS Seminar - Heurisitic Machinery to Uncover Hidden Features of SU(N) Fermions with Neural Networks 
06
Oct 2020
Seminar, Lecture, Talk
MATH - Seminar on Pure Mathematics - Cluster structurer on K-theoretic Coulomb branches, part II.

It was conjectured by Davide Gaiotto, that K-theoretic Coulomb branches of 3d N=4 SUSY gauge theories possess structure of cluster varieties. In this talk, I will explain how to attack this conjecture in the case of quiver gauge theories.

29
Sep 2020
Seminar, Lecture, Talk
MATH - Seminar on Pure Mathematics - Introduction to Coulomb branches and their cluster structure

Braverman, Finkelberg and Nakajima have recently proposed a mathematical definition of the Coulomb branch of a 3d N=4 gauge theory of cotangent type, associating to each such theory a family of associative algebras deforming the algebra of functions on an affine Poisson

25
Sep 2020
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