Ruizhen Liu

Department of Mathematics
University of Toronto

E-mail:
  ruizhen [dot] liu [at] utoronto [dot] ca

I am a fourth-year undergraduate student at the University of Toronto. My undergraduate work is done under the advisement of Hunter Spink.

Research interests: Combinatorics and Algebraic Geometry, with a focus on Hyperplane Arrangements.


Research

Here are some recent papers and notes.

Deligne-Lusztig varieties, toric orbifolds, and the q-Klyachko algebra
R. Liu
preprint, 2026; 10 pp.
pdf
Vanishing theorems on wonderful varieties
R. Liu
submitted, 2025; 48 pp.
pdf
Lifting points from initial degenerations of linear spaces
R. Liu
preprint, 2024; 4 pp.
pdf

Presentations

- The 38th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC), Seattle, WA, 2026.

- The 23rd Combinatorial Algebra meets Algebraic Combinatorics (CAAC) conference, Dalhousie University, Halifax, 2026. Poster

- Junior Number Theory Seminar, University of Toronto, Toronto, 2025.

- Algebraic Combinatorics seminar, Fields Institute, Toronto, 2025.

- Joint Math Meetings, Seattle, WA, 2025.

- Algebraic Combinatorics seminar, Fields Institute, Toronto, 2024.

Last updated: March 2026