RC-Graphs and Schubert Polynomials

  title={RC-Graphs and Schubert Polynomials},
  author={Nantel Bergeron and Sara Billey},
  journal={Experimental Mathematics},
Bergeron was supported by the National Science Foundation. Billey was supported by the National Physical Science Consortium, IBM and UCSD. Using a formula of Billey, Jockusch and Stanley, Fomin and Kirillov have introduced a new set of diagrams that encode the Schubert polynomials. We call these objects rc-graphs. We define and prove two variants of an algorithm for constructing the set of all rc-graphs for a given permutation. This construction makes many of the identities known for Schubert… CONTINUE READING
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