Raymond Chou

collaborators

2 papers

math.AG2026

Torus Equivariant Cohomology for the $Δ$ -Springer Fiber

Raymond Chou

We define a torus $U \subset T = (C^{\times})^{K}$ which acts on the $Δ$ -Springer varieties $Y_{n, λ, s}$ defined by Griffin-Levinson-Woo and give a Borel-style presentation for…

math.CO2024

Equivariant cohomology of Grassmannian spanning lines

Raymond Chou, Tomoo Matsumura, Brendon Rhoades

Given integers $n \geq k \geq d$ , let $X_{n, k, d}$ be the moduli space of $n$ -tuples of lines $(ℓ_{1}, \dots, ℓ_{n})$ in $C^{k}$ such that $ℓ_{1} + \dots + ℓ_{n}$ has di…

Torus Equivariant Cohomology for the Δ-Springer Fiber

Equivariant cohomology of Grassmannian spanning lines

Torus Equivariant Cohomology for the $Δ$ -Springer Fiber