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math.AG2013
Degenerate coordinate rings of flag varieties and Frobenius splitting
Chuck Hague
Recently E. Feigin introduced the -degenerations of semisimple algebraic groups and their associated degenerate flag varieties. It has been shown by Feigin, Finkelbe…
math.AG2009
On the B-canonical splittings of flag varieties
Chuck Hague
Let G be a semisimple algebraic group over an algebraically closed field of positive characteristic. In this note, we show that an irreducible closed subvariety of the flag variety…
math.AG2008
Cohomology of Flag Varieties and the Brylinski-Kostant Filtration
Chuck Hague
Let G be a semisimple complex algebraic group with Borel subgroup B and let P be a parabolic subgroup of G. Let T*(G/P) denote the cotangent bundle of G/P. Ranee Brylinski discover…