A Borel-style presentation is constructed for the torus-equivariant cohomology ring of the Δ-Springer fiber using orbit harmonics.
The equivariant cohomology rings of Peterson varieties in all Lie types.Canadian Mathematical Bulletin, 58(1):80–90
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Torus Equivariant Cohomology for the $\Delta$-Springer Fiber
A Borel-style presentation is constructed for the torus-equivariant cohomology ring of the Δ-Springer fiber using orbit harmonics.