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math.AG2026
Unexpected toric Richardson varieties
Eugene Gorsky, Soyeon Kim, Melissa Sherman-Bennett
We prove that an open Richardson variety in the complete flag variety for is isomorphic to a torus if and only if the corresponding closed Richardson variety is tor…
math.AG2026
Smooth correspondences between quiver varieties
Nicolle González, Eugene Gorsky, José Simental
We introduce a new class of smooth correspondences between Nakajima quiver varieties called split parabolic quiver varieties, and study their properties. We use these correspondenc…