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

November 6 at 5:30pm (Beijing time) [special time!]

Vanja Zuliani (Université Paris-Saclay)

Title: Semiorthogonal decompositions from quantum cohomology

Abstract: In this seminar I will review some conjectures by Halper-Leistner on the non-commutative MMP. One of the central aspects of this program is to show how quantum cohomology induces, via Bridgeland stability conditions, a sort of “canonical” semi-orthogonal decomposition. Halper-Leistner studied the NCMMP for curves. I will show how quantum cohomology of projective spaces P^n induces semiorthogonal decompositions.


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 (CUHK), Quadratic differentials and Donaldson-Thomas invariants

November 6: Vanja Zuliani (Université Paris-Saclay), Semiorthogonal decompositions from quantum cohomology

November 20: Aimeric Malter (BIMSA)

November 27: Nantao Zhang (Tsinghua University), Global dimension of geometric stability condition

December 4: Benjamin Sung (UCSB)


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