Caltech/USC Algebra & Geometry Seminar

Welcome to the homepage of the joint algebra and geometry seminar at California Institute of Technology and University of Southern California! We meet approximately every two weeks on Thursday afternoons, alternating between the two campuses. Each meeting consists of two one-hour talks followed by a seminar dinner. Topics at our seminar include but are not limited to algebra, representation theory, algebraic geometry, mirror symmetry, and mathematical physics.

  • Time: Thursdays 2:30pm-3:30pm and 4:00pm-5:00pm
  • (different from last semester)
  • Caltech location: Linde Hall (37), Room 187
  • USC location: Kaprielian Hall, Room 414. Note the room has changed.
  • Organizers: Yifeng Huang (USC), Wenyuan Li (USC), Weihong Xu (Caltech)
  • Click on the title to view the abstract.
  • Note the special date, time, and/or location in red, if any.

Below is the Fall 2025-2026 schedule. Archives: 2025 Winter Spring, 2024 Fall, Academic year 2023-2024.

Date Speaker Affiliation Title
10/2/2025
@Caltech
Agustina Czenky USC
TBA

Abstract. TBA

TBA TBA
TBA

Abstract. TBA

10/23/2025
@USC
Jeremy Taylor UCLA
TBA

Abstract. TBA

Zhaoxing Gu Caltech
TBA

Abstract. TBA

11/6/2025
@Caltech
Leonardo Mihalcea Virginia Tech
TBA

Abstract. TBA

Fanjun Meng UCSD
Wall crossing for moduli of stable pairs

Abstract. Hassett showed that there are natural reduction morphisms between moduli spaces of weighted pointed stable curves when we reduce weights. I will discuss some joint work with Ziquan Zhuang which constructs similar morphisms between moduli of stable pairs in higher dimension.

11/20/2025
@USC
Lara San Martin Suarez Caltech
TBA

Abstract. TBA

TBA TBA
TBA

Abstract. TBA

12/4/2025
@Caltech
Zhiwei Yun MIT
TBA

Abstract. TBA

Mark Shoemaker Colorado State
TBA

Abstract. TBA