A Padé-type approach to non-classical orthogonal polynomials

Orthogonal polynomials satisfying fourth order differential equations

Allan M. Krall · Proceedings of the Royal Society of Edinburgh Section A Mathematics · 1981 · 133 citations

Spectral Theory, Engineering, Orthogonal Polynomials +10

THE KRALL POLYNOMIALS: A NEW CLASS OF ORTHOGONAL POLYNOMIALS

Lance L. Littiejohn · Quaestiones Mathematicae · 1982 · 94 citations

Spectral Theory, Orthogonal Polynomials, Representation Theory +7

Distributional Weight Functions for Orthogonal Polynomials

Robert D. Morton, Allan M. Krall · SIAM Journal on Mathematical Analysis · 1978 · 85 citations

Fourier Transform, Engineering, Orthogonal Polynomials +8

On the classification of differential equations having orthogonal polynomial solutions — II

Allan M. Krall, Lance L. Littlejohn · Annali di Matematica Pura ed Applicata (1923 -) · 1987 · 66 citations · Full text

Differential Equations, Orthogonal Polynomial Solutions, Nonlinear Equation +1

Nonclassical Orthogonal Polynomials as Solutions to Second Order Differential Equations

Lance L. Littlejohn, S. D. Shore · Canadian Mathematical Bulletin · 1982 · 26 citations · Full text

Spectral Theory, Engineering, Orthogonal Polynomials +7