Geodesic
The 6 Vertex Model and Schubert Polynomials
Symmetry, integrability and geometry: methods and applications, Tome 3 (2007) Cet article a éte moissonné depuis la source Math-Net.Ru

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We enumerate staircases with fixed left and right columns. These objects correspond to ice-configurations, or alternating sign matrices, with fixed top and bottom parts. The resulting partition functions are equal, up to a normalization factor, to some Schubert polynomials.
Keywords: alternating sign matrices; Young tableaux; staircases; Schubert polynomials; integrable systems. 
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Alain Lascoux. The 6 Vertex Model and Schubert Polynomials. Symmetry, integrability and geometry: methods and applications, Tome 3 (2007). http://geodesic.mathdoc.fr/item/SIGMA_2007_3_a28/

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