Cauchy-Jacobi orthogonal polynomials and the discrete CKP equation

Fuente: arXiv
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Hauptverfasser: Li, Shi-Hao, Tsujimoto, Satoshi, Watanabe, Ryoto, Yu, Guo-Fu
Format: Preprint
Veröffentlicht: 2025
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author Li, Shi-Hao
Tsujimoto, Satoshi
Watanabe, Ryoto
Yu, Guo-Fu
author_facet Li, Shi-Hao
Tsujimoto, Satoshi
Watanabe, Ryoto
Yu, Guo-Fu
contents This paper intends to construct discrete spectral transformations for Cauchy-Jacobi orthogonal polynomials, and find its corresponding discrete integrable systems. It turns out that the normalization factor of Cauchy-Jacobi orthogonal polynomials acts as the $τ$-function of the discrete CKP equation, which has applications in Yang-Baxter equation, integrable geometry, cluster algebra, and so on.
format Preprint
id arxiv_https___arxiv_org_abs_2504_18891
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Cauchy-Jacobi orthogonal polynomials and the discrete CKP equation
Li, Shi-Hao
Tsujimoto, Satoshi
Watanabe, Ryoto
Yu, Guo-Fu
Mathematical Physics
Exactly Solvable and Integrable Systems
This paper intends to construct discrete spectral transformations for Cauchy-Jacobi orthogonal polynomials, and find its corresponding discrete integrable systems. It turns out that the normalization factor of Cauchy-Jacobi orthogonal polynomials acts as the $τ$-function of the discrete CKP equation, which has applications in Yang-Baxter equation, integrable geometry, cluster algebra, and so on.
title Cauchy-Jacobi orthogonal polynomials and the discrete CKP equation
topic Mathematical Physics
Exactly Solvable and Integrable Systems
url https://arxiv.org/abs/2504.18891