Chayim Lowen

Chayim Lowen

Welcome to my personal webpage.

I am a third-year graduate student at Princeton University. I received my Bachelor's degree from the University of Toronto in 2023. My advisor is June Huh.

I am interested broadly in algebraic combinatorics and specifically in the interplay between convex geometry and algebraic geometry, in matroids (valuated, oriented, etc.) and their realization spaces, and in tropical geometry.

Here is my Curriculum Vitae.

I may be contacted at chayiml [at] princeton [dot] edu.

Blowups of a Gm-surface at a fixed point. — Blowups of a $\mathbb{G}_m$-surface at a fixed point.

Preprints

Structural properties of Białynicki-Birula decompositions (with Teddy Gonzales). In preparation.
On the asymptotic behavior of finite hyperfields (with Tuong Le), arXiv preprint.
Simultaneous generating sets for flags (with Federico Glaudo and Noah Kravitz), arXiv preprint.

Talks

March 2026: Geometric and cohomological properties of Białynicki-birula decompositions, Virginia Tech, Algebra seminar.
February 2026: Linear algebra over hyperfields, Georgia Tech, Algebra seminar.
October 2025: Bounded ratios for Lorentzian matrices, Mathematisches Forschungsinstitut Oberwolfach, Arbeitsgemeinschaft.
July 2025: What is a subspace?, Institute for Advanced Study, Special Year in Algebraic and Geometric Combinatorics seminar.
March 2025: A vexing vexillological counting problem, Princeton University, Graduate student seminar.