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 $\mathbb{G}_m$-surface at a fixed point.


Preprints


Talks

March 2026
Geometric and cohomological properties of BiaƂynicki-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.