Abstract:
We establish a relation between linear second-order difference equations corresponding to Chebyshev polynomials and Catalan numbers. The latter are the limit coefficients of a converging series of rational functions corresponding to the Riccati equation. As the main application, we show a relation between the polynomials φn(μ) that are solutions of the problem of commutation of a tridiagonal matrix with the simplest Vandermonde matrix and Chebyshev polynomials.
The research of B. S. Bychkov was performed within a project supported by the Ministry of Science and Higher Education of the Russian Federation (CIS at Demidov Yaroslavl State University).
Citation:
A. E. Artisevich, B. S. Bychkov, A. B. Shabat, “Chebyshev polynomials, Catalan numbers, and tridiagonal matrices”, TMF, 204:1 (2020), 3–9; Theoret. and Math. Phys., 204:1 (2020), 837–842