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We investigate the degree of approximation to functions with l-th derivative of bounded variation by trigonometric interpolation polynomials with equidistant knots. Moreover, we discuss simultaneous approximation of the derivatives of the error.
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This page is a summary of: Trigonometrische Interpolation von Funktionen beschränkter Variation, Mathematische Nachrichten, January 1985, Wiley,
DOI: 10.1002/mana.19851220104.
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