Differential Geometry Seminar

Schedule.Date: 25 Feb., 2025Speaker: Marco Mazzucchelli (ENS Lyon) Title: Closed geodesics and the first Betti number Abstract: In this talk, based on a joint work with Gonzalo Contreras, I will present the following result: on a closed Riemannian manifold of dimension at least two with non-trivial first Betti number, the existence of a minimal closed geodesic, in the sense of Aubry-Mather t...

Speaker：Marco Mazzucchelli (ENS Lyon)

Tsinghua-BIMSA symplectic geometry seminar

Schedule:February 24 Zuyi Zhang（PKU）Title: Immersed Lagrangian Floer theory, Lagrangain compositions, and bounding cochains on surfacesAbstract: In this talk, I will first give the background of immersed Lagrangian Floer theory based on character varieties. Then I will focus on the relation between immersed quilted Lagrangian Floer theory and usual immersed Lagrangian Floer theory when they a...

Speaker：Zuyi Zhang（PKU）

MCM-YMSC p-adic Geometry Learning Seminar

Overview of the seminar (2:30-4 pm, MCM 110)

Speaker：Koji Shimizu (YMSC)

Algebraic Geometry Seminar

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

Speaker：Omprokash Das (Tata Institute of Fundamental Research)

Geometric Representation Theory Seminar

Upcoming talks02/21 Robert McRae (YMSC) Tensor structure on the Kazhdan-Lusztig category of affine $\mathfrak{sl}_2$ at admissible levelsFor a simple Lie algebra $\mathfrak{g}$ and a level $k$, the Kazhdan-Lusztig category $KL_k(\mathfrak{g})$ is the category of finite-length modules for the affine Lie algebra of $\mathfrak{g}$ at level $k$ whose composition factors have highest weights which a...

Speaker：Robert McRae (YMSC)