64 citations · 101 across the 26 of their papers we have counts for
28 papers
Functions on Nilpotent Orbit Covers and Birational Geometry
William Graham, Scott Joseph Larson, Alberto San Miguel Malaney
We use an analogue of the Springer resolution to describe the -module structure on the ring of regular functions on the universal cover of any nilpoten…
Irreducible Characteristic Cycles for Orbit Closures of a Symmetric Subgroup
William Graham, Minyoung Jeon, Scott Joseph Larson
Let and with , where the groups are taken over $\C$. In this paper we study a certain family of -orbit closures on the flag variety $…
Geometric and combinatorial properties of extended Springer fibers
William Graham, Martha Precup, Amber Russell
We consider a generalization of the Springer resolution studied in earlier work of the authors, called the extended Springer resolution. In type , this map plays a role in Luszt…
Tangent spaces and T-invariant curves of Schubert varieties
William Graham, Victor Kreiman
The set of T-invariant curves in a Schubert variety through a T-fixed point is relatively easy to characterize in terms of its weights, but the tangent space is more difficult. We…
A new approach to the generalized Springer correspondence
William Graham, Martha Precup, Amber Russell
The Springer resolution of the nilpotent cone is used to give a geometric construction of the irreducible representations of Weyl groups. Borho and MacPherson obtain the Springer c…
Equivariant K-theory and tangent spaces to Schubert varieties
William Graham, Victor Kreiman
Tangent spaces to Schubert varieties of type A were characterized by Lakshmibai and Seshadri. This result was extended to the other classical types by Lakshmibai. We give a uniform…