Nonsymmetric Macdonald polynomials, Demazure modules and PBW filtration

preprint2014arXivOpen access

Abstract

The Cherednik-Orr conjecture expresses the t→∞t\to\infty limit of the nonsymmetric Macdonald polynomials in terms of the PBW twisted characters of the affine level one Demazure modules. We prove this conjecture in several special cases.

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