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Studies in Applied Mathematics
Article . 2025 . Peer-reviewed
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Article . 2025
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https://dx.doi.org/10.48550/ar...
Article . 2022
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Matrix‐Valued Cauchy Bi‐Orthogonal Polynomials and a Novel Noncommutative Integrable Lattice

Matrix-valued Cauchy bi-orthogonal polynomials and a novel noncommutative integrable lattice
Authors: Li, Shi-Hao; Shi, Ying; Yu, Guo-Fu; Zhao, Jun-Xiao;

Matrix‐Valued Cauchy Bi‐Orthogonal Polynomials and a Novel Noncommutative Integrable Lattice

Abstract

ABSTRACTMatrix‐valued Cauchy bi‐orthogonal polynomials are proposed in this paper, together with its quasideterminant expression. It is shown that the coefficients in the four‐term recurrence relation for matrix‐valued Cauchy bi‐orthogonal polynomials satisfy a novel noncommutative integrable system, whose Lax pair is given by fractional differential operators with non‐abelian variables.

Related Organizations
Keywords

matrix-valued Cauchy bi-orthogonal polynomials, noncommutative Toda lattice, Integrable difference and lattice equations; integrability tests, Nonlinear Sciences - Exactly Solvable and Integrable Systems, direct method, FOS: Physical sciences, Mathematical Physics (math-ph), Orthogonal polynomials and functions of hypergeometric type (Jacobi, Laguerre, Hermite, Askey scheme, etc.), Relations of infinite-dimensional Hamiltonian and Lagrangian dynamical systems with algebraic geometry, complex analysis, and special functions, Relations of infinite-dimensional Hamiltonian and Lagrangian dynamical systems with infinite-dimensional Lie algebras and other algebraic structures, Lattice dynamics; integrable lattice equations, quasideterminants, Exactly Solvable and Integrable Systems (nlin.SI), Mathematical Physics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Top 10%
Average
Average
Green