Approximation of Poisson Integrals by de la Vallée Poussin Sums
@article{Serdyuk2004ApproximationOP, title={Approximation of Poisson Integrals by de la Vall{\'e}e Poussin Sums}, author={A. Serdyuk}, journal={Ukrainian Mathematical Journal}, year={2004}, volume={56}, pages={122-134} }
On the classes of Poisson integrals of functions belonging to unit balls in the spaces C and L, we obtain asymptotic equalities for the upper bounds of approximations by de la Vallée Poussin sums in the uniform metric and the integral metric, respectively.
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