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Natural SciencesComputer ScienceFinite Element AnalysisIntegral Equation FormulationsIntegral EquationsMultiple IntegralsNumerical AnalysisIntegral Equation InversionInversion TheoremsOrthogonal ExpansionsOrthogonal Polynomial ApproximationOrthogonal Polynomial BasesOrthogonal Polynomial ExpansionsOrthogonal Polynomials
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Nature · 1916 · 2.7K citations
J. L. Burchnall · Canadian Journal of Mathematics · 1951 · 84 citations · Full text
W. A. Al‐Salam · Duke Mathematical Journal · 1957 · 37 citations