求真书院召开发展对象学习班讨论分享会

Invariants attached to vector bundles and topological realizations | BIMSA AG Seminar

Abstract In this talk, l will first explain how motivic homotopy theory allows to classify vector bundles usinginvariants in certain cohomology groups that are amenable to computations. For smooth

Local trace formula and branching problems | Number Theory Lunch Seminar

Abstract Branching problems study representations of reductive groups over local or global fields whichare distinguished by certain nice subgroups. They play important roles in representation theor...

A Deligne-Simpson problem for irregular G-connections over P^1 | GRASP seminar

Abstract The Deligne-Simpson problem asks for the existence of meromorphic G-connections withprescribed local behavior at the poles. l will explain joint work with Zhiwei Yun in which we give

A Noether-Lefschetz type theorem for spectral varieties with applications

Abstract In this talk, we will discuss spectral variety and related moduli spaces of Higgs pairs on surfaces. We will first introduce the geometry of moduli of Higgs pairs and the spectral varietie...

Lectures on link homology theories

Abstract We will survey aspects of algebraically defined link homology theories and discuss several key open questions that come out of these structures. About the Speaker Mikhail Khovanov Columbia

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求真体育 | 第七周赛事预告

The weak categorical quiver minor theorem and its applications | BIMSA Topology Seminar

Abstract The aim of the talk is to show that magnitude cohomology yields finitely generated functors onthe category of directed graphs with bounded genus. We wil use the framework

Constructing modular tensor categories by using Hopf algebras | BIMSA-Tsinghua Quantum Symmetry

Abstract A modular tensor category is a non-degenerate ribbon finite tensor category. We will constructribbon factorizable Hopfalgebras whose representation categories are modular tensor