Abstract
The author gives some upper and lower bounds for the generalized Christoffel functions related to a Ditzian-Totik generalized weight. As an application, an error estimate of Gauss quadrature formula inL 1-weighted norm is derived.
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Dedicated to Prof. Luigi Gatteschi on the occasion of his 70th birthday
Work sponsored by MURST 40%.
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Mastroianni, G. Generalized Christoffel functions and error of positive quadrature. Numer Algor 10, 113–126 (1995). https://doi.org/10.1007/BF02198298
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DOI: https://doi.org/10.1007/BF02198298