20 citations · 100 across the 14 of their papers we have counts for
6 papers · 1 filter
K-orbit closures and Barbasch-Evens-Magyar varieties
Laura Escobar, Benjamin J. Wyser, Alexander Yong
We define the Barbasch-Evens-Magyar varieties. We show they are isomorphic to the smooth varieties defined in [D.~Barbasch-S.~Evens '94] that map generically finitely to symmetric…
Governing singularities of symmetric orbit closures
Alexander Woo, Benjamin Wyser, Alexander Yong
We develop interval pattern avoidance and Mars-Springer ideals to study singularities of symmetric orbit closures in a flag variety. This paper focuses on the case of the Levi subg…
Wonderful Symmetric Varieties and Schubert Polynomials
Mahir Bilen Can, Michael Joyce, Benjamin Wyser
Extending results of Wyser, we determine formulas for the equivariant cohomology classes of closed orbits of certain families of spherical subgroups of on the flag variety $…
K-orbit closures on G/B as universal degeneracy loci for flagged vector bundles splitting as direct sums
Benjamin J. Wyser
We use equivariant localization and divided difference operators to determine formulas for the torus-equivariant fundamental cohomology classes of -orbit closures on the flag va…
K-orbit closures on G/B as universal degeneracy loci for flagged vector bundles with symmetric or skew-symmetric bilinear form
Benjamin J. Wyser
We use equivariant localization and divided difference operators to determine formulas for the torus-equivariant fundamental cohomology classes of -orbit closures on the flag va…
Symmetric subgroup orbit closures on flag varieties: Their equivariant geometry, combinatorics, and connections with degeneracy loci
Benjamin J. Wyser
We give explicit formulas for torus-equivariant fundamental classes of closed -orbits on the flag variety when is one of the classical groups $SL(n,\C)$, $SO(n,\C)$, o…