Weak behaviour of Fourier-Jacobi series
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Universidad de Zaragoza
info
ISSN: 0021-9045
Année de publication: 1990
Volumen: 61
Número: 2
Pages: 222-238
Type: Article
D'autres publications dans: Journal of Approximation Theory
Résumé
Necessary conditions for the weak convergence of Fourier series in orthogonal polynomials are given. It is shown that the partial sum operator associated with the Jacobi series is of restricted weak type, but not of weak type, for the endpoints of the mean convergence interval. © 1990.