Chayim Lowen

Welcome to my personal webpage.

I am a fourth-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 in the interplay between the algebraic, geometric and combinatorial aspects of matroid theory.

Curriculum Vitae

chayiml [at] princeton [dot] edu.

Preprints

A quasisymmetric analog of Grassmannian Schubert varieties (with Teddy Gonzales and Tuong Le).
On Smooth Combinatorial Products of Simplices (with Juliana Curtis and Tuong Le).
Koszul Orlik–Solomon algebras from non-supersolvable arrangements (with Tuong Le and Jason McCullough).
Matroid flat counts can have many peaks (with Alexander Divoux, Matt Larson, and Shouda Wang).
Structural properties of Białynicki-Birula decompositions (with Teddy Gonzales).
On the asymptotic behavior of finite hyperfields (with Tuong Le).
Simultaneous generating sets for flags (with Federico Glaudo and Noah Kravitz).

Snapshots of my work

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.