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arXiv · 1110.3958

Rationally-extended radial oscillators and Laguerre exceptional orthogonal polynomials in kth-order SUSYQM

C. Quesne
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Abstract

A previous study of exactly solvable rationally-extended radial oscillator potentials and corresponding Laguerre exceptional orthogonal polynomials carried out in second-order supersymmetric quantum mechanics is extended to $k$th-order one. The polynomial appearing in the potential denominator and its degree are determined. The first-order differential relations allowing one to obtain the associated exceptional orthogonal polynomials from those arising in a ($k-1$)th-order analysis are established. Some nontrivial identities connecting products of Laguerre polynomials are derived from shape invariance.

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BibTeXRIS

C. Quesne. 2011-10-18. Rationally-extended radial oscillators and Laguerre exceptional orthogonal polynomials in kth-order SUSYQM. https://doi.org/10.1142/s0217751x11054942

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