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20082025
most citedExceptional Laguerre and Jacobi polynomials and the corresponding potentials through Darboux-Crum Transformations

49 citations · 348 across the 45 of their papers we have counts for

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22 papers · 1 filter

math-ph2024★ 2 cited

Meta Algebras and Biorthogonal Rational Functions: The Hahn Case

Satoshi Tsujimoto, Luc Vinet, Alexei Zhedanov

The finite families of biorthogonal rational functions and orthogonal polynomials of Hahn type are interpreted algebraically in a unified way by considering the three-generated met…

math-ph2022★ 4 cited

Classical and quantum walks on paths associated with exceptional Krawtchouk polynomials

Hiroshi Miki, Satoshi Tsujimoto, Luc Vinet

Classical and quantum walks on some finite paths are introduced. It is shown that these walks have explicit solutions given in terms of exceptional Krawtchouk polynomials and their…

math-ph2020

The ultradiscrete Toda lattice and the Smith normal form of bidiagonal matrices

Katsuki Kobayashi, Satoshi Tsujimoto

The discrete Toda lattice preserves the eigenvalues of tridiagonal matrices, and convergence of dependent variables to the eigenvalues can be proved under appropriate conditions. W…

math-ph2020

Perfect state transfer in two dimensions and the bivariate dual-Hahn polynomials

Hiroshi Miki, Satoshi Tsujimoto, Luc Vinet

A new solvable two-dimensional spin lattice model defined on a regular grid of triangular shape is proposed. The hopping amplitudes between sites are related to recurrence coeffici…

math-ph2020

Two-parameter generalisations of Cauchy bi-orthogonal polynomials and integrable lattices

Xiang-Ke Chang, Shi-Hao Li, Satoshi Tsujimoto +1

In this article, we consider the generalised two-parameter Cauchy two-matrix model and corresponding integrable lattice equation. It is shown that with parameters chosen as …

math-ph2020★ 11 cited

The Heun-Racah and Heun-Bannai-Ito algebras

Geoffroy Bergeron, Nicolas Crampé, Satoshi Tsujimoto +2

This paper introduces and studies the Heun-Racah and Heun-Bannai-Ito algebras abstractly and establishes the relation between these new algebraic structures and generalized Heun-ty…