BIMSA > BIMSA AG Seminar
BIMSA AG Seminar
Topics include, but not limited to: Enumerative geometry, Derived algebraic geometry, Motivic homotopy, Hodge theory, P-adic Hodge theory, Algebraic cycles, Moduli spaces, Shimura variety, Calabi-Yau geometry, D-modules, Computational Algebraic Geometry.
Organizers
Artan Sheshmani , Nan Jun Yang , Bei Hui Yuan
Date
21st September, 2023 ~ 29th May, 2025
Location
Weekday Time Venue Online ID Password
Thursday 15:00 - 16:00 A6-101 ZOOM 2 638 227 8222 BIMSA
Coming Talks
Cellular A1-Homology of Smooth Toric Varieties
Speaker: Keyao Peng
Time: Thursday, May 22, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
TBA
Speaker: Frédéric Déglise
Time: Thursday, May 29, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Previous Talks
On the Vafa-Witten invariants on projective surfaces
Speaker: Yuuji Tanaka
Time: Thursday, May 15, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
3d mirror symmetry of vertex functions for bow varieties
Speaker: Hunter Dinkins
Time: Thursday, May 8, 2025 10:00 AM - 11:00 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Gluing invariants of Donaldson-Thomas type
Speaker: Guillaume Tahar
Time: Thursday, April 24, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Isoresidual fibration and resonance arrangements
Speaker: Guillaume Tahar
Time: Tuesday, April 22, 2025 3:00 PM - 4:00 PM
Venue: A7-101 Online: Zoom 361 038 6975 Password: BIMSA
Mixed spin $p$-field and BCOV’s Feynman rule
Speaker: Shuai Guo
Time: Thursday, April 17, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Weil-etale cohomology and Frobenius rigidity
Speaker: Thomas Geisser
Time: Thursday, April 10, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Syzygies of Mori fibre spaces and Landau-Ginzburg models
Speaker: Yang He
Time: Thursday, April 3, 2025 2:00 PM - 3:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Cycles on abelian $2n$-folds of Weil type from secant sheaves on abelian $n$-folds.
Speaker: Eyal Markman
Time: Thursday, March 27, 2025 10:00 AM - 11:30 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Motivic classes of Higgs bundles and of bundles with connections
Speaker: Roman Fedorov
Time: Thursday, March 20, 2025 10:00 AM - 11:00 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Explicit problems on K-stability of Fano varieties
Speaker: Ivan Cheltsov
Time: Thursday, March 13, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
The cone theorem for Kahler varieties
Speaker: Christopher Derek Hacon
Time: Thursday, March 6, 2025 10:00 AM - 11:00 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
The Chow ring of the moduli space of degree 2 K3 surfaces
Speaker: Dragos Oprea
Time: Thursday, February 27, 2025 10:00 AM - 11:00 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Derived symmetries for crepant resolutions of hypersurfaces
Speaker: William Donovan
Time: Thursday, February 20, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Higher genus Gromov-Witten correspondences for smooth log Calabi-Yau pairs
Speaker: Benjamin Zhou
Time: Thursday, February 13, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
A six-functor formalism for quasi-coherent sheaves and crystals on rigid-analytic varieties
Speaker: Arun Soor
Time: Thursday, January 23, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Zeta and L functions of Voevodsky’s motives
Speaker: Bruno Kahn
Time: Thursday, January 16, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Motives of moduli spaces of bundles on curves
Speaker: Victoria Hoskins
Time: Thursday, January 9, 2025 3:00 PM - 4:00 PM
Venue: A7-201 Online: Zoom 638 227 8222 Password: BIMSA
Metrics on stability spaces
Speaker: Yu Wei Fan
Time: Thursday, January 2, 2025 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
h-function of local rings of characteristic p
Speaker: Cheng Meng
Time: Thursday, December 26, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Birational geometry and some applications to physics
Speaker: Caucher Birkar
Time: Thursday, December 19, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Non-linear PDEs and Secondary Calculus via Derived Algebraic Geometry
Speaker: Jacob Kryczka
Time: Thursday, December 12, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
On the Quantum K-theory of Quiver Varieties at Roots of Unity
Speaker: Peter Koroteev
Time: Thursday, December 5, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
On Hodge Polynomials for Non-Algebraic Complex Manifolds
Speaker: Etnesto Lupercio
Time: Thursday, November 28, 2024 10:00 AM - 11:00 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
TBA
Speaker: Chris Brav
Time: Thursday, November 21, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Derived moduli spaces of Hermitian-Einstein connections
Speaker: Dennis Borisov
Time: Thursday, November 21, 2024 10:00 AM - 11:00 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Toric exoflops and derived categories
Speaker: Aimeric Malter
Time: Thursday, November 14, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Classifying spaces in motivic homotopy: from group cohomology to purity questions
Speaker: Matthias Wendt
Time: Thursday, November 7, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
A fibration formula for characteristic classes of constructible étale sheaves
Speaker: Yigeng Zhao
Time: Thursday, October 31, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Speaker: Guangqiang Tie
Time: Thursday, October 24, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Neutral representations of finite groups, arithmetic of quotient singularities, and fields of moduli
Speaker: Angelo Vistoli
Time: Thursday, October 24, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Algebraic versus homological equivalence of algebraic cycles
Speaker: Arnaud Beauville
Time: Thursday, October 17, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Two new motivic complexes for non-smooth schemes
Speaker: Shane Kelly
Time: Thursday, October 17, 2024 10:00 AM - 11:00 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Birational and singularity invariants from nc Hodge theory
Speaker: Tony Pantev
Time: Thursday, October 10, 2024 10:00 AM - 11:00 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Bott periodicity, algebro-geometrically
Speaker: Ravi Vakil
Time: Thursday, September 26, 2024 10:00 AM - 11:00 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Concrete models for atoms and a Chen-Ruan toy model
Speaker: Leonardo F. Cavenaghi
Time: Thursday, September 19, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Enumerative invariants of noncommutative Calabi-Yau threefolds
Speaker: Sheldon Katz
Time: Thursday, September 12, 2024 9:30 AM - 10:30 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Positivity of Grassmannian quantum K-theory
Speaker: Nicolas Perrin
Time: Thursday, September 5, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Nakai Conjecture for Homogeneous Isolated Hypersurface Singularity
Speaker: Shing Toung Yau
Time: Thursday, June 20, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Real holomorphic sections of Deligne-Hitchin moduli spaces
Speaker: Sebastian Heller
Time: Thursday, June 13, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Tropical geometry of generic root counts
Speaker: Yue Ren
Time: Thursday, June 6, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
An arithmetic Abramovich--Bertram formula
Speaker: Kirsten Wickelgren
Time: Thursday, May 30, 2024 10:00 PM - 11:00 PM
Venue: Online Online: Zoom 638 227 8222 Password: BIMSA
Derived categories of moduli of parabolic bundles on a projective line
Speaker: Anton Fonarev
Time: Thursday, May 30, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Tensor triangulated geometry on derived categories of algebraic varieties
Speaker: Angel Toledo Castro
Time: Thursday, May 23, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Differential geometric PDE moduli spaces: derived enhancements, ellipticity and representability
Speaker: Pelle Steffens
Time: Wednesday, May 22, 2024 3:00 PM - 4:00 PM
Venue: Online Online: Zoom 462 110 5973 Password: BIMSA
Nonabelian Hodge theory for stacks and BPS cohomology
Speaker: Ben Davison
Time: Thursday, May 16, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Make Schubert calculus calculable
Speaker: Haibao Duan
Time: Thursday, May 9, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Castelnuovo-Mumford regularity of subspace arrangements
Speaker: Manolis Tsakiris
Time: Thursday, April 25, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Mirror symmetry and partial compactifications of K3 moduli
Speaker: Mark Gross
Time: Thursday, April 18, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Invariants attached to vector bundles and topological realizations
Speaker: Jean Fasel
Time: Thursday, April 11, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
3d cohomological Hall algebras for local surfaces
Speaker: Adeel Khan
Time: Thursday, March 28, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Wall-crossing in abelian gauged linear sigma models
Speaker: Melissa Liu
Time: Thursday, March 21, 2024 8:00 AM - 9:00 AM
Venue: Online Online: Zoom 638 227 8222 Password: BIMSA
Moduli Superspaces
Speaker: Enno Kessler
Time: Saturday, March 16, 2024 10:00 AM - 11:30 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Supergeometry and Super Riemann Surfaces
Speaker: Enno Kessler
Time: Friday, March 15, 2024 10:00 AM - 11:30 AM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Gelfand-Fuchs cohomology for affine superspaces $A^{m,n}$
Speaker: Svyatoslav Pimenov
Time: Thursday, March 14, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Quantum Lefschetz without curves
Speaker: Richard Thomas
Time: Thursday, March 7, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Quadratic DT invariants for real spin threefolds
Speaker: Marc Levine
Time: Thursday, February 29, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Dual boundary complexes of character varieties and the geometric P=W conjecture
Speaker: Tao Su
Time: Thursday, February 22, 2024 3:00 PM - 4:00 PM
Venue: A6-101 Online: Zoom 638 227 8222 Password: BIMSA
Geometry of special nilpotent orbits
Speaker: Baohua Fu
Time: Thursday, December 14, 2023 3:30 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
Motivic cohomology of cyclic coverings
Speaker: Tariq Syed
Time: Thursday, December 7, 2023 3:30 PM - 5:00 PM
Venue: Online Online: Zoom 638 227 8222 Password: BIMSA
On Filtrations for Topological (Negative, or Periodic) Cyclic Homology
Speaker: Jingbang Guo
Time: Thursday, November 30, 2023 3:30 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
Counting surfaces on Calabi-Yau fourfolds
Speaker: Martijn Kool
Time: Thursday, November 23, 2023 4:00 PM - 5:00 PM
Venue: Online Online: Zoom 638 227 8222 Password: BIMSA
Rigidity problems on moduli spaces of polarized manifolds
Speaker: Ruiran Sun
Time: Thursday, November 23, 2023 3:00 PM - 4:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
The cyclic Deligne conjecture and Calabi-Yau structures
Speaker: Christopher Brav
Time: Thursday, November 16, 2023 4:00 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
Kähler cone-manifolds arising from a projective arrangement
Speaker: Da Li Shen
Time: Thursday, November 16, 2023 3:00 PM - 4:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
Mahler measure, integral $K_2$ and Beilinson's conjecture of curves over number fields
Speaker: Guoping Tang
Time: Thursday, November 9, 2023 3:30 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
On the rationality of dlog A^1-zeta functions
Speaker: Xiaowen Hu
Time: Thursday, November 2, 2023 3:30 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
Cubic fourfolds, hyperkähler varieties and one-obstructed Lagrangians
Speaker: Hanfei Guo
Time: Thursday, October 26, 2023 4:00 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
The cycle class of the supersingular locus
Speaker: Gerard Van der Geer
Time: Thursday, October 26, 2023 3:00 PM - 4:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
Smooth complex projective varieties with infinitely many real forms
Speaker: Xun Yu
Time: Thursday, October 19, 2023 4:00 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 361 038 6975 Password: BIMSA
Quasimaps to quivers with potentials
Speaker: Yalong Cao
Time: Thursday, October 19, 2023 3:00 PM - 4:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 361 038 6975 Password: BIMSA
A rigidity theorem of families of Calabi-Yau n-folds
Speaker: Kang Zuo
Time: Thursday, October 12, 2023 3:30 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
BV differentials and Derived Lagrangian intersections in moduli spaces of surfaces on Fano and CY threefolds
Speaker: Artan Sheshmani
Time: Thursday, September 28, 2023 3:30 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA
Calabi-Yau 3-folds in projective spaces and Gorenstein rings
Speaker: Bei Hui Yuan
Time: Thursday, September 21, 2023 3:30 PM - 5:00 PM
Venue: YMSC-Jingzhai-304 Online: Zoom 638 227 8222 Password: BIMSA