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...

Speaker：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...

Speaker：Sam DeHority, Ben Webster, Alexander Samokhin

Algebraic Geometry Seminar

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

Speaker：Joaquí­n Moraga (UCLA)

Quantum Scientific Computation and Quantum Artificial Intelligence量子科学计算与量子人工智能

Upcoming talk: Speaker: Fanzhi LuTime: Wed., 10:00-11:00 am, Jun. 18, 2025Venue：Tencent Meeting (VooV Meeting): 708-001-930Title: Tunable Variable Time Amplitude Amplification and Its Application in Quantum Linear System ProblemAbstract: In this lecture, we will first understand Variable Time Amplitude Amplification (VTAA) [1]. VTAA is a generalization of amplitude amplification to the case wh...

Speaker：Fanzhi Lu

YMSC Topology Seminar

Enumerative problem for Pell-Abel equation.Andrei B. BOGATYREV, Russian Academy of Sciences (2025-06-10)Abstract:The Pell-Abel (PA) functional equation is the reincarnation of the famous Diophantine equation in the world of polynomials, considered N. H. Abel in 1826. The equation arises in many problems: reduction of Abelian integrals, elliptic billiards, the spectral problem for infinite Jacob...

Speaker：Andrei B. BOGATYREV (Russian Academy of Sciences)