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• W3189698116 abstract "Associated to a finite measure on the real line with finite moments are recurrence coefficients in a three-term formula for orthogonal polynomials with respect to this measure. These recurrence coefficients are frequently inputs to modern computational tools that facilitate evaluation and manipulation of polynomials with respect to the measure, and such tasks are foundational in numerical approximation and quadrature. Although the recurrence coefficients for classical measures are known explicitly, those for nonclassical measures must typically be numerically computed. We survey and review existing approaches for computing these recurrence coefficients for univariate orthogonal polynomial families and propose a novel “predictor–corrector” algorithm for a general class of continuous measures. We combine the predictor–corrector scheme with a stabilized Lanczos procedure for a new hybrid algorithm that computes recurrence coefficients for a fairly wide class of measures that can have both continuous and discrete parts. We evaluate the new algorithms against existing methods in terms of accuracy and efficiency." @default.
• W3189698116 created "2021-08-16" @default.
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• W3189698116 date "2021-07-20" @default.
• W3189698116 modified "2023-10-15" @default.
• W3189698116 title "On the Computation of Recurrence Coefficients for Univariate Orthogonal Polynomials" @default.
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• W3189698116 doi "https://doi.org/10.1007/s10915-021-01586-w" @default.
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• W3189698116 hasPublicationYear "2021" @default.
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