The $GL_{\ell+1}(\mathbb{R})$ Hecke-Baxter operator: principal series representations

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Main Authors: Gerasimov, Anton A., Lebedev, Dmitry R., Oblezin, Sergey V.
Format: Preprint
Published: 2025
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author Gerasimov, Anton A.
Lebedev, Dmitry R.
Oblezin, Sergey V.
author_facet Gerasimov, Anton A.
Lebedev, Dmitry R.
Oblezin, Sergey V.
contents Previously introduced the $GL_{\ell+1}(\mathbb{R})$ Hecke-Baxter operator is a one-parameter family of elements in the commutative spherical Hecke algebra $\mathcal{H}(GL_{\ell+1}(\mathbb{R}),O_{\ell+1})$. Its action on spherical vectors in spherical principle series representations of $GL_{\ell+1}(\mathbb{R})$ is given by multiplication by the Archimedean $L$-factors associated to these representations. In this note we propose an extension of the construction to other (non-spherical) $GL_{\ell+1}(\mathbb{R})$ principle series representations providing a relevant generalization of the notions of spherical vector, commutative spherical Hecke algebra and the Hecke-Baxter operator to the general case. Action of the introduced Hecke-Baxter operator on the generalized spherical vectors is given by multiplication by the Archiemdean $L$-factor associated to the corresponding principle series representation of $GL_{\ell+1}(\mathbb{R})$.
format Preprint
id arxiv_https___arxiv_org_abs_2506_16708
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The $GL_{\ell+1}(\mathbb{R})$ Hecke-Baxter operator: principal series representations
Gerasimov, Anton A.
Lebedev, Dmitry R.
Oblezin, Sergey V.
Representation Theory
Number Theory
22D30, 22E45, 43A90
Previously introduced the $GL_{\ell+1}(\mathbb{R})$ Hecke-Baxter operator is a one-parameter family of elements in the commutative spherical Hecke algebra $\mathcal{H}(GL_{\ell+1}(\mathbb{R}),O_{\ell+1})$. Its action on spherical vectors in spherical principle series representations of $GL_{\ell+1}(\mathbb{R})$ is given by multiplication by the Archimedean $L$-factors associated to these representations. In this note we propose an extension of the construction to other (non-spherical) $GL_{\ell+1}(\mathbb{R})$ principle series representations providing a relevant generalization of the notions of spherical vector, commutative spherical Hecke algebra and the Hecke-Baxter operator to the general case. Action of the introduced Hecke-Baxter operator on the generalized spherical vectors is given by multiplication by the Archiemdean $L$-factor associated to the corresponding principle series representation of $GL_{\ell+1}(\mathbb{R})$.
title The $GL_{\ell+1}(\mathbb{R})$ Hecke-Baxter operator: principal series representations
topic Representation Theory
Number Theory
22D30, 22E45, 43A90
url https://arxiv.org/abs/2506.16708