A Bochner type characterization theorem for exceptional orthogonal polynomials

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Rational and elliptic solutions of the korteweg‐de vries equation and a related many‐body problem

Hélène Airault, H. P. McKean, J. Moser · Communications on Pure and Applied Mathematics · 1977 · 556 citations

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ASSOCIATED STURM-LIOUVILLE SYSTEMS

M. M. Crum · The Quarterly Journal of Mathematics · 1955 · 550 citations

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Differential equations in the spectral parameter

J. J. Duistermaat, F. A. Gr�nbaum · Communications in Mathematical Physics · 1986 · 447 citations

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An extended class of orthogonal polynomials defined by a Sturm–Liouville problem

David Gómez‐Ullate, Niky Kamran, Robert Milson · Journal of Mathematical Analysis and Applications · 2009 · 358 citations · Full text

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