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math.AG2013
Eigenvalue Coincidences and -orbits, I
Mark Colarusso, Sam Evens
We study the variety consisting of matrices $x \in \mathfrak{gl}(n,\C)$ such that and its by cutoff share exactly eigenvalues, count…
math.AG2011★ 4 cited
The Belkale-Kumar cup product and relative Lie algebra cohomology
Sam Evens, William Graham, with an appendix jointly written with Edward Richmond
We study the Belkale-Kumar family of cup products on the cohomology of a generalized flag variety. We give an alternative construction of the family using relative Lie algebra coho…
math.AG2008★ 23 cited
On the wonderful compactification
Sam Evens, Benjamin F Jones
These lecture notes explain the construction and basic properties of the wonderful compactification of a complex semisimple group of adjoint type. An appendix discusses the more ge…