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arxiv: 0909.3668 · v2 · pith:JKJAYXBQnew · submitted 2009-09-21 · 🧮 math-ph · hep-th· math.CA· math.MP· nlin.SI· quant-ph

Infinitely many shape invariant discrete quantum mechanical systems and new exceptional orthogonal polynomials related to the Wilson and Askey-Wilson polynomials

classification 🧮 math-ph hep-thmath.CAmath.MPnlin.SIquant-ph
keywords polynomialsaskey-wilsonexceptionalwilsondegreeinfinitelyinvariantmany
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Two sets of infinitely many exceptional orthogonal polynomials related to the Wilson and Askey-Wilson polynomials are presented. They are derived as the eigenfunctions of shape invariant and thus exactly solvable quantum mechanical Hamiltonians, which are deformations of those for the Wilson and Askey-Wilson polynomials in terms of a degree \ell (\ell=1,2,...) eigenpolynomial. These polynomials are exceptional in the sense that they start from degree \ell\ge1 and thus not constrained by any generalisation of Bochner's theorem.

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