Abstract
We prove a formula for double Schubert and Grothendieck polynomials, specialized to two re-arrangements of the same set of variables. Our formula generalizes the usual formulas for Schubert and Grothendieck polynomials in terms of RC-graphs, and it gives immediate proofs of many other important properties of these polynomials. To cite this article: A.S. Buch, R. Rimányi, C. R. Acad. Sci. Paris, Ser. I 339 (2004).
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