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Intertwining Operators of Double Affine Hecke Algebras

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arxiv q-alg/9605014 v5 pith:2VGI4P7M submitted 1996-05-09 q-alg math.QA

Intertwining Operators of Double Affine Hecke Algebras

classification q-alg math.QA
keywords affinealgebrasheckedoubleintertwiningmacdonaldoperatorspolynomials
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A systematic study of the representation theory of double affine Hecke algebras and related harmonic analysis is started in this paper. Continuing the previous papers we use the technique of intertwining operators to create Macdonald polynomials, estimate their denominators, generalize the classical representations of p-adic affine Hecke algebras in the spaces of functions on affine Weyl groups, and to find out when induced representations are irreducible and co-spherical. The connection with recent results by Sahi and Knop on the integrality of the Macdonald polynomials is established.

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  1. Integrable systems inspired by DAHA and DIM algebra: type $C^\vee C$ versus type $A$

    hep-th 2026-07 accept novelty 4.5

    Type C∨C DAHA and Koornwinder systems mirror type-A Macdonald structures for Hamiltonians, recursions, evaluations and dualities, but lack a usable Noumi-Shiraishi-style universal series and SL(2,Z)-type twisting auto...