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math.AG2000
Double Schubert polynomials and degeneracy loci for the classical groups
Andrew Kresch, Harry Tamvakis
We propose a theory of double Schubert polynomials P_w(X,Y) for the Lie types B, C, D which naturally extends the family of Lascoux of Schutzenberger in type A. These polynomials s…
math.AG2000
Standard conjectures for the arithmetic Grassmannian G(2,N) and Racah polynomials
Andrew Kresch, Harry Tamvakis
We prove the arithmetic Hodge index and hard Lefschetz conjectures for the Grassmannian parametrizing lines in projective space, for the natural arithmetic Lefschetz ope…