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arXiv · 1411.3045

Perturbations around the zeros of classical orthogonal polynomials

Ryu Sasaki
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Abstract

Starting from degree N solutions of a time dependent Schroedinger-like equation for classical orthogonal polynomials, a linear matrix equation describing perturbations around the N zeros of the polynomial is derived. The matrix has remarkable Diophantine properties. Its eigenvalues are independent of the zeros. The corresponding eigenvectors provide the representations of the lower degree (0,1,...,N-1) polynomials in terms of the zeros of the degree N polynomial. The results are valid universally for all the classical orthogonal polynomials, including the Askey scheme of hypergeometric orthogonal polynomials and its q-analogues.

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Ryu Sasaki. 2014-11-12. Perturbations around the zeros of classical orthogonal polynomials. https://doi.org/10.1063/1.4918707

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