BIMSA-YMSC Geometry and Dynamics Seminar
Description
Seminar covering a broad range of topics in geometry and/or dynamics.
Date and Time: Wednesdays at 1:30-2:30pm (Beijing time)
Zoom Meeting ID: 815 762 8413 (Passcode: BIMSA)
Upcoming Talk
March 5 at 1:30pm (Beijing time)
Tomohiro Karube
(The University of Tokyo)
Title:
The noncommutative MMP for blowup surfaces
Abstract:
The notion of Bridgeland stability conditions is the derived analogue of the slope stability of coherent sheaves. Like the ample cone of a variety, the space of Bridgeland stability conditions reflects properties of a variety. The noncommutative minimal model program (NCMMP), proposed by Halpern-Leistner, is an analogue of minimal model program (MMP) in derived categories. The NCMMP aims to divide the derived category into smaller components through semiorthogonal decomposition by using the space of Bridgeland stability conditions. In this talk, I will show the relation between the NCMMP and quantum cohomology, and I will discuss the blowup of a surface at a point.
Spring 2025 Schedule
March 5: Tomohiro Karube (The University of Tokyo), The noncommutative MMP for blowup surfaces
April 2: Ki Fung Chan (The Chinese University of Hong Kong)
April 16: Yinbang Lin (Tongji University)
May 28: Chao-Ming Lin (Ohio State University)
...
Fall 2024 Schedule
September 25: Shizhuo Zhang (IBS-CGP),
1-nodal prime Fano threefolds parametrized by Bridgeland stable objects in Kuznetsov component of del Pezzo threefolds
[
slides]
October 23: Kohei Kikuta (Osaka University/University of Edinburgh),
Geometrical finiteness for automorphism groups via cone conjecture
[
slides]
October 30: Omar Kidwai (The Chinese University of Hong Kong),
Quadratic differentials and Donaldson-Thomas invariants
November 6: Vanja Zuliani (Université Paris-Saclay),
Semiorthogonal decompositions from quantum cohomology
November 20: Aimeric Malter (BIMSA),
Toric Exoflops
November 27: Nantao Zhang (Tsinghua University),
Global dimension of geometric stability condition
[
slides]
December 4: Benjamin Sung (UCSB),
The Stability Manifold of ExExE
Spring 2024 Schedule
March 13: Guillaume Tahar (Beijing Institute of Mathematical Sciences and Applications), Isoresidual fibration and resonance arrangements
[
slides]
March 20: Yat-Hin Suen (Korea Institute for Advanced Study), Toric vector bundles, non-abelianisation, and spectral networks
[
slides]
March 27: Ziming Nikolas Ma (Southern University of Science and Technology), Deformation theory, Fukaya's conjecture and the Gross-Siebert program
[
slides]
April 10: Jun Zhang (University of Science and Technology of China), Metric geometry on Grothendieck groups in symplectic geometry
[
slides]
April 17: Takumi Otani (Tsinghua University), The number of full exceptional collections for orbifold projective lines
[
slides]
May 8: Hiroki Matsui (Tokushima University), The spectrum of a triangulated category and its applications to algebraic geometry
[
slides]
May 15: Asilata Bapat (Australian National University), Categorical q-deformed rational numbers via Bridgeland stability conditions
[
slides]
May 22: Xun Yu (Tianjin University), Automorphism groups of smooth hypersurfaces
May 29: Fei Yu (Zhejiang University), Hassett-Keel program and moduli spaces of Abelian differentials
[
slides]
Fall 2023 Schedule
December 6: Jia Jia (Tsinghua University), Wild automorphisms of compact complex spaces
[
slides]
December 13: Atsushi Kanazawa (Keio University), Mirror symmetry and rigid structures of generalized K3 surfaces
[
slides]
December 20: Sangjin Lee (Korea Institute for Advanced Study), A lower-bound of entropy from symplectic topology
[
slides]
January 3: Pranav Pandit (International Centre for Theoretical Sciences), Formal deformations of higher categories
January 10: Dongjian Wu (Tsinghua University), Riemann-Hilbert problems from rank 3 WKB spectral networks