Global $GL_2$ Hecke-Baxter operator

Fuente: arXiv
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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 We construct a global Hecke-Baxter operator for integrable systems of arithmetic type associated with the group $GL_2$. This is an element of a global Hecke algebra associated with the double coset space $GL_2(\mathbb{Z})\backslash GL_2(\mathbb{R})/O_2$. Eigenvalues of the global Hecke-Baxter operator acting on the $GL_2$-Eisenstein series are given by the corresponding global $L$-factors. This construction generalizes our previous construction of the Hecke-Baxter operators over local completions $\mathbb{R}$ and $\mathbb{Q}_p$ of the number field $\mathbb{Q}$. Presumably, zeroes of the corresponding global $L$-factors should be subjected to an arithmetic version of the Bethe ansatz equations.
format Preprint
id arxiv_https___arxiv_org_abs_2507_09979
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Global $GL_2$ Hecke-Baxter operator
Gerasimov, Anton A.
Lebedev, Dmitry R.
Oblezin, Sergey V.
Representation Theory
Number Theory
11F41, 11F70, 11M06, 11M36
We construct a global Hecke-Baxter operator for integrable systems of arithmetic type associated with the group $GL_2$. This is an element of a global Hecke algebra associated with the double coset space $GL_2(\mathbb{Z})\backslash GL_2(\mathbb{R})/O_2$. Eigenvalues of the global Hecke-Baxter operator acting on the $GL_2$-Eisenstein series are given by the corresponding global $L$-factors. This construction generalizes our previous construction of the Hecke-Baxter operators over local completions $\mathbb{R}$ and $\mathbb{Q}_p$ of the number field $\mathbb{Q}$. Presumably, zeroes of the corresponding global $L$-factors should be subjected to an arithmetic version of the Bethe ansatz equations.
title Global $GL_2$ Hecke-Baxter operator
topic Representation Theory
Number Theory
11F41, 11F70, 11M06, 11M36
url https://arxiv.org/abs/2507.09979