A Littlewood-Richardson rule for Macdonald polynomials
Martha Yip
Abstract
Open-access reader
Martha Yip
Abstract
Open-access reader
Macdonald polynomials are orthogonal polynomials associated to root systems, and in the type A case, the symmetric kind is a common generalization of Schur functions, Macdonald spherical functions, and Jack polynomials. We use the combinatorics of alcove walks to calculate products of monomials and intertwining operators of the double affine Hecke algebra. From this, we obtain a product formula for Macdonald polynomials of general type.
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Macdonald polynomials are orthogonal polynomials associated to root systems, and in the type A case, the symmetric kind is a common generalization of Schur functions, Macdonald spherical functions, and Jack polynomials. We use the combinatorics of alcove walks to calculate products of monomials and intertwining operators of the double affine Hecke algebra. From this, we obtain a product formula for Macdonald polynomials of general type.
Key concepts: Macdonald polynomials, Koornwinder polynomials, Mathematics, Orthogonal polynomials, Monomial, Classical orthogonal polynomials, Schur polynomial, Discrete orthogonal polynomials