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Keywords:
Right-angled sums of Vallee Poussin; integral presentations; Fourier series
Right-angled sums of Vallee Poussin; integral presentations; Fourier series
Summary:
We investigate approximation properties of de la Vallee Poussin right-angled sums on the classes of periodic functions of several variables with a high smoothness. We obtain integral presentations of deviations of de la Vallee Poussin sums on the classes $C_{\beta ,\infty }^{m\alpha }$.
References:
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