Abstract
We study the equivariant -group of the affine flag manifold with respect to the Borel group action. We prove that the structure sheaf of the (infinite-dimensional) Schubert variety in the K-group is represented by a unique polynomial, which we call the affine Grothendieck polynomial
Citation
Masaki Kashiwara. Mark Shimozono. "Equivariant -theory of affine flag manifolds and affine Grothendieck polynomials." Duke Math. J. 148 (3) 501 - 538, 15 June 2009. https://doi.org/10.1215/00127094-2009-032
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