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Trigonometric approximation with exponential error orders

I. construction of asymptotically optimal processes; generalized de la Vallée Poussin sums

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  1. Institut für Angewandte Mathematik der Universität, Bonn, Wegelerstr. 6, D-5300, Bonn, Federal Republic of Germany

    Wolfgang Dahmen

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  1. Wolfgang Dahmen
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Dahmen, W. Trigonometric approximation with exponential error orders. Math. Ann. 230, 57–74 (1977). https://doi.org/10.1007/BF01420576

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