Geodesic
An explicit construction of type A Demazure atoms
Journal of Algebraic Combinatorics, Tome 29 (2009) no. 3, pp. 295-313.

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Summary: Demazure characters of type A, which are equivalent to key polynomials, have been decomposed by Lascoux and Schützenberger into standard bases. We prove that the resulting polynomials, which we call Demazure atoms, can be obtained from a certain specialization of nonsymmetric Macdonald polynomials. This combinatorial interpretation for Demazure atoms accelerates the computation of the right key associated to a semi-standard Young tableau. Utilizing a related construction, we provide a new combinatorial description of the key polynomials.
Keywords: keywords symmetric functions, Young tableaux, Demazure characters 
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     author = {Mason, S.},
     title = {An explicit construction of type {A} {Demazure} atoms},
     journal = {Journal of Algebraic Combinatorics},
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     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2009__29_3_a4/}
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Mason, S. An explicit construction of type A Demazure atoms. Journal of Algebraic Combinatorics, Tome 29 (2009) no. 3, pp. 295-313. http://geodesic.mathdoc.fr/item/JAC_2009__29_3_a4/