Seminars and colloquia

E.g., Apr 25, 2025


Western Algebraic Geometry Symposium

April 26, 2025 - 9:00 am to April 27, 2025 - 1:00 pm

University of British Columbia

WAGS aims to build a regional community among algebraic geometers of all career stages, from advanced undergraduates to full professors. The meetings are centered around research talks delivered by leading mathematicians from around the world highlighting exciting recent ... Read more
  • Algebra and Algebraic geometry

Toni Annala

The University of Chicago
Dreams and nightmares about intersection theory

May 6, 2025 - 10:30 am to 11:30 am

MATH 104

Intersection theory studies the Chow ring, an algebraic structure whose elements correspond to subvarieties of a variety X, with the ring product reflecting the intersection of subvarieties in X. Thanks to the foundational work of Fulton and MacPherson, this theory is well- ... Read more
  • Algebra and Algebraic geometry
  • Topology

Amin Gholampour

University of Maryland
Degeneration technique in Gromov-Witten and Donaldson-Thomas theories

May 6, 2025 - 11:30 am to 12:30 pm

MATH 104

I will review some aspects of degeneration technique in curve counting problems via Gromov-Witten and Donaldson-Thomas theories. This has been one of the major tools in developments in both theories and computing the invariants. I will then talk about a progress on the ... Read more
  • Algebra and Algebraic geometry
  • Topology

Alexander Weekes

University of Saskatchewan
Symplectic leaves and representation theory

May 6, 2025 - 11:30 am to 12:30 pm

MATH 104

Given a complex algebraic variety with a Poisson structure, one can ask for its decomposition into symplectic leaves: the foliation by flows of Hamiltonian vector fields. Although a priori not guaranteed, in many situations these strata are themselves algebraic varieties, and ... Read more
  • Algebra and Algebraic geometry
  • Topology

Jonathan Wise

University of Colorado Boulder
The logarithmic Grassmannian

May 6, 2025 - 3:00 pm to 4:00 pm

MATH 225

I will describe an approach to constructing a compact moduli space of hyperplane arrangements use logarithmic and tropical geometry. Read more
  • Algebra and Algebraic geometry
  • Topology

Claudius Zibrowius

Ruhr-University Bochum
Khovanov homology and Conway mutation

May 7, 2025 - 10:30 am to 11:30 am

MATH 104

What has homological mirror symmetry ever done for you? I will give my personal answer to that question and discuss joint work in progress with Liam Watson and Artem Kotelskiy concerning the behaviour of Khovanov homology under Conway mutation. Claudius was a postdoctoral ... Read more
  • Algebra and Algebraic geometry
  • Topology

Ben Young

University of Oregon
Single and Double Dimer problems from geometry

May 7, 2025 - 10:30 am to 11:30 am

MATH 104

This will be an introduction to the single- and double-dimer models, which arise in many places in mathematics (including in equivariant localization calculations of enumerative invariants). Read more
  • Algebra and Algebraic geometry
  • Topology