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The Combinatorics of Al-Salam-Chihara $q$-Laguerre polynomials

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 نشر من قبل Jiang Zeng
 تاريخ النشر 2010
  مجال البحث
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We describe various aspects of the Al-Salam-Chihara $q$-Laguerre polynomials. These include combinatorial descriptions of the polynomials, the moments, the orthogonality relation and a combinatorial interpretation of the linearization coefficients. It is remarkable that the corresponding moment sequence appears also in the recent work of Postnikov and Williams on enumeration of totally positive Grassmann cells.



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