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Affine Hecke algebras and quiver Hecke algebras - MaRDI portal

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Affine Hecke algebras and quiver Hecke algebras

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Publication:6246492

arXiv1311.3745MaRDI QIDQ6246492

Author name not available (Why is that?)

Publication date: 15 November 2013

Abstract: We give a presentation of localized affine and degenerate affine Hecke algebras of arbitrary type in terms of weights of the polynomial subalgebra and varied Demazure-BGG type operators. We offer a definition of a graded algebra mathcalH whose category of finite-dimensional ungraded nilpotent modules is equivalent to the category of finite-dimensional modules over an associated degenerate affine Hecke algebra. Moreover, unlike the traditional grading on degenerate affine Hecke algebras, this grading factors through central characters, and thus gives a grading to the irreducible representations of the associated degenerate affine Hecke algebra. This paper extends the results cite[Theorem 3.11]{rouquier-qha}, and cite[Main Theorem]{brundan-kleshchev} where the affine and degenerate affine Hecke algebras for GLn are shown to be related to quiver Hecke algebras in type A, and also secretly carry a grading.












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