Abstract
In this paper, we obtain L 1-weighted norms of classical orthogonal polynomials (Hermite, Laguerre and Jacobi polynomials) in terms of the zeros of these orthogonal polynomials; these expressions are usually known as quadrature rules. In particular, these new formulae are useful to calculate directly some positive defined integrals as several examples show.
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To Laura and Pablo
L. Abadias and P. J. Miana have been partially supported by Project MTM2013-42105-P, DGI-FEDER, of the MCYTS; Project E-64, D.G. Aragón, and Project UZCUD2014-CIE-09, Universidad de Zaragoza. The third author is supported by Ministerio de Ciencia y Tecnología MTM2011-28636-C02.
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Abadias, L., Miana, P.J. & Romero, N. Quadrature Rules for L 1-Weighted Norms of Orthogonal Polynomials. Mediterr. J. Math. 13, 1291–1306 (2016). https://doi.org/10.1007/s00009-015-0552-0
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DOI: https://doi.org/10.1007/s00009-015-0552-0