Algebraic Geometry Seminar

组织者 Organizer: Caucher Birkar时间 Time: 每周五 Every Friday 15:30-16:30

报告人：Vyacheslav V. Shokurov (Steklov Mathematical Institute of Russian Academy)

ADS seminar

ADS seminar on ***3rd July***(This coming **Thursday*** Afternoon)***2:00pm ***(Offline)Venue: Shuangqing Complex C548.Speaker: W. Lerche (CERN)Title: Gromov-Witten Theory and AdS/CFT CorrespondenceAbstract: We discuss how results in the mathematical literature can be applied to the AdS3/CFT correspondence, in a topological sub-sector. They relate the blow-up deformation of the orbifold singula...

报告人：W. Lerche (CERN)

Tsinghua-BIMSA symplectic geometry seminar

Schedule:2025/07/01Dylan Cant（Laboratoire de mathématiques d'Orsay）Title: Spectral Invariants and Symplectic CohomologyAbstract: In this talk, we will give an overview of the various spectral invariants which can be defined using symplectic cohomology of Liouville domains. Applications to Legendrian fillings, symplectic embedding problems, metric structures on contactomorphism groups, and exi...

报告人：Dylan Cant（Laboratoire de mathématiques d'Orsay）

YMSC-BJTU Geometry seminar

Upcoming talk: Date&Time: June. 27th, 2025, 14:00-15:00Venue: Jingzhai (静斋) 218Speaker: Zetian Yan (UC Santa Barbara)Title: Recent progress on fourth order Willmore energyAbstract: We introduce a fourth-order Willmore-type problem for closed four-dimensional submanifolds immersed in $R^n$ and establish a connected sum energy reduction for the general fourth-order Willmore energy, analogous t...

报告人：Zetian Yan (UC Santa Barbara)

Geometric Representation Theory Seminar

Upcoming talks 06/2710:30am-11:30am (双清 Shuangqing B626) Sam DeHority (Yale)Quiver folding and cohomological Hall modulesWe investigate modules for cohomological Hall algebras which arise from (anti-)involutions of the underlying quiver, and find that the cohomology of moduli stacks of objects with classical type structure groups (e.g. for orthosymplectic quivers) gives a module which satisfi...

报告人：Sam DeHority, Ben Webster, Alexander Samokhin