Abstract
The authors study the error of the product quadrature rules to compute the integral\(\int_{ - 1}^1 {f\left( x \right) u\left( x \right)dx} \). Estimates inL 1-weighted norm are established whenu is a weight with algebraic and/or logarithmic singularities and the quadrature points are classical Jacobi zeros. Upper bounds for the generalized functions of second kind are also given.
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This material is based upon work supported by the «Ministero dell'Università e della Ricerca Scientifica e Tecnologica» (first author) and by the Italian Research Council (second author).
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Criscuolo, G., Scuderi, L. Error bound for product quadrature rules inL 1-weighted norm. Calcolo 31, 73–93 (1994). https://doi.org/10.1007/BF02575720
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DOI: https://doi.org/10.1007/BF02575720