Che Shen  沈澈

I'm a fifth-year PhD student in mathematics at Columbia University. I'm interested in representation theory and algebraic geometry. My advisor is Andrei Okounkov.

Here is my CV.

Email: che.shen [at] columbia [dot] edu

Research

• Relative Quasimaps and Tilting Module of \(U({\mathfrak{gl}}_n)\). arxiv, slides
• Affine Laumon space and contragredient dual Verma module of \(U_q(\widehat{\mathfrak{gl}}_n)\). pdf (more updated than arxiv), poster

Seminars

• Fall 2024 and Spring 2025 — Representation Theory and Categorification seminar, co-organized with Davis Lazowski, Alvaro Martinez, and Fan Zhou

Teaching Experience

Columbia University

Instructor for:

• Spring 2025 — Calculus I

Teaching Assistant for:

• Fall 2025 — Calculus II
• Fall 2024 — Calculus III
• Spring 2024 — Analysis and Optimization
• Fall 2023 — Modern Analysis
• Fall 2023 — Lie Groups and Representations

Invited Talks

• Informal Mathematical Physics Seminar, Columbia University, December 2025.
• Mathematical Physics Seminar, Perimeter Institute, October 2025.
• Geometric Methods in Representation Theory Seminar, UNC-Chapel Hill, October 2025.
• Informal String-Math Seminar, UC Berkeley, September 2025.
• Geometry, Symmetry, and Physics Seminar, Yale University, September 2025.
• Geometric Representation Theory Seminar, Tsinghua University, July 2024.
• Informal Mathematical Physics Seminar, Columbia University, March 2024.

Last updated: April 3, 2026