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math.RT2026
Automorphisms of medium algebras and quasi-anisotropic real affine Grassmannians
Mischa Elkner
We study automorphisms of Hausel's medium algebras by identifying them with equivariant cohomology algebras of affine Schubert varieties of a complex reductive group . The autom…
math.RT2024
On involutions of minuscule Kirillov algebras induced by real structures
Mischa Elkner
We study Kirillov algebras attached to minuscule highest weight representations of semisimple Lie algebras. They can be viewed as equivariant cohomology algebras of partial flag va…