$c$-functions and Koornwinder polynomials

Fuente: arXiv
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Autori principali: Colmenarejo, Laura, Ram, Arun
Natura: Preprint
Pubblicazione: 2024
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author Colmenarejo, Laura
Ram, Arun
author_facet Colmenarejo, Laura
Ram, Arun
contents This paper develops the theory of Macdonald-Koornwinder polynomials in parallel analogy with the work done for the $GL_n$ case in [CR22]. In the context of the type $CC_n$ affine root system the Macdonald polynomials of other root systems of classical type are specializations of the Koornwinder polynomials. We derive $c$-function formulas for symmetrizers and use them to give $E$-expansions, principal specializations and norm formulas for bosonic, mesonic and fermionic Koornwinder polynomials. Finally, we explain the proof of the norm conjectures and constant term conjectures for the Koornwinder case.
format Preprint
id arxiv_https___arxiv_org_abs_2410_19957
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle $c$-functions and Koornwinder polynomials
Colmenarejo, Laura
Ram, Arun
Combinatorics
05E05 (Primary), 33D52 (Secondary)
This paper develops the theory of Macdonald-Koornwinder polynomials in parallel analogy with the work done for the $GL_n$ case in [CR22]. In the context of the type $CC_n$ affine root system the Macdonald polynomials of other root systems of classical type are specializations of the Koornwinder polynomials. We derive $c$-function formulas for symmetrizers and use them to give $E$-expansions, principal specializations and norm formulas for bosonic, mesonic and fermionic Koornwinder polynomials. Finally, we explain the proof of the norm conjectures and constant term conjectures for the Koornwinder case.
title $c$-functions and Koornwinder polynomials
topic Combinatorics
05E05 (Primary), 33D52 (Secondary)
url https://arxiv.org/abs/2410.19957