q-Analogs of symmetric function operators

نویسنده

  • Mike Zabrocki
چکیده

For any homomorphism V on the space of symmetric functions, we introduce an operation that creates a q-analog of V . By giving several examples we demonstrate that this quantization occurs naturally within the theory of symmetric functions. In particular, we show that the Hall-Littlewood symmetric functions are formed by taking this q-analog of the Schur symmetric functions and the Macdonald symmetric functions appear by taking the q-analog of the Hall-Littlewood symmetric functions in the parameter t. This relation is then used to derive recurrences on the Macdonald q, t-Kostka coefficients. Résumé. Pour un homomorphisme V sur l’espace des fonctions symétriques, nous présentons une opération qui crée un q-analogue de V . En donnant plusieurs exemples nous démontrons que cette quantization se produit naturellement dans la théorie de fonctions symétriques. En particulier, nous prouvons que les fonctions symétriques de Hall-Littlewood sont constituées en prenant ce q-analogue des fonctions symétriques de Schur et les fonctions symétriques de Macdonald apparaissent en prenant le q-analogue des fonctions symétriques de Hall-Littlewood dans le paramètre t. Cette relation est alors employée pour dériver des récurrence sur les coefficients Macdonald q, t-Kostka.

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عنوان ژورنال:
  • Discrete Mathematics

دوره 256  شماره 

صفحات  -

تاریخ انتشار 2002