Pieri-Type Formulas for the Nonsymmetric Macdonald Polynomials

Details Pieri-Type Formulas for the Nonsymmetric Macdonald Polynomials Pieri-Type Formulas for the Nonsymmetric Macdonald Polynomials

2008-06-17

arxiv.org/abs/0806.2695v3

Mathematics

Quantum Algebra

Scientific paper

In symmetric Macdonald polynomial theory the Pieri formula gives the branching coefficients for the product of the rth elementary symmetric function and the Macdonald polynomial. In this paper we give the nonsymmetric analogues for the cases r=1 and r=n-1. We do this by first deducing the the decomposition for the product of any nonsymmetric Macdonald polynomial with a linear function in terms of nonsymmetric Macdonald polynomials. As a corollary of finding the branching coefficients of the product of the first elementary function with a nonsymmetric Macdonald polynomial we evaluate the generalised binomial coefficients associated with the nonsymmetric Macdonald polynomials for |u|=|v|+1.

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