Leaf schemes and Hodge loci

Introduction Hodge conjecture is one of the millennium conjectures for which the evidences are not so much: It is proved for surfaces (Lefschetz (1,1) theorem) and surface type varieties (like cubi...

Einstein metrics from Derdziński duality

Abstract： (joint work with Rosa Sena-Dias) A theorem of Derdziński from the 1980's establishes that certain Einstein metrics are conformal to Bach-flat extremal Kahler metrics. Using this result ...

Wrapped Floer theory for Lagrangian fillings

Abstract： Lagrangian fillings are key objects in symplectic geometry. Wrapped Floer theory can be used to show some rigidity property of embedded Lagrangian fillings. We extend the wrapped Floer

Dispersionless integrable hierarchies and Loewner type equations

Abstract Dispersionless integrable hierarchies are obtained as certain limits of classical integrable hierarchies such as the KP hierarchy and the Toda lattice hierarchy. They were introduced in 19...

An introduction to Frobenius manifolds and primitive forms III

Abstract The notion of Frobenius manifold was essentially found by Kyoji Saito, and axiomatized by Dubrovin. Frobenius manifolds play an important role in algebraic geometry, singularity theory an

BIMSA Member Seminar - Bart Vlaar

Speaker Intro Dr. Bart Vlaar has joined BIMSA in September 2022 as an Associate Professor. His research interests are in algebra and representation theory and applications in mathematical physics. ...

Moduli space of vector bundles and Frobenius splitting

Abstract After a brief introduction of Frobenius splitting in positive charactersitic, we report some progresses about moduli space of vector bundles on a curve in this direction. This is based on

疯狂星期四｜新生数理基础大赛开放报名

奖项公布! 2023丘成桐女子中学生数学竞赛

今晚顺利落幕！本届大赛共有120余名学生参加线下笔试，34人入围面试，角逐“诺特奖”，最终评选出金奖、银奖、铜奖 以及优胜奖，共18位获奖选手！ 获奖名单如下： 金奖1人 陈彤彤 江苏省苏州中学校 银奖2人 温宜...

Intersection cohomology in combinatorics

Abstract Many important posets (partially ordered sets) in combinatorics have algebriac interpretations. We will go over three families of examples: toric varieties, Schubert varieties and matroid