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Combinatorics and invariant differential operators on multiplicity free spaces

Friedrich Knop
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Abstract

We study the generalization of shifted Jack polynomials to arbitrary multiplicity free spaces. In a previous paper (math.RT/0006004) we showed that these polynomials are eigenfunctions for commuting difference operators. Our central result now is the "transposition formula", a generalization of Okounkov's binomial theorem (q-alg/9608021) for shifted Jack polynomials. From this formula, we derive an interpolation formula, an evaluation formula, a scalar product, a binomial theorem, and properties of the algebra generated by the multiplication and difference operators.

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Friedrich Knop. 2001-06-11. Combinatorics and invariant differential operators on multiplicity free spaces. https://doi.org/10.1016/s0021-8693(02)00633-6

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