Abstract:
We obtain asymptotic formula for upper bounds of deviations of Fejer sums on classes of Poisson integrals. Under certain conditions, formula guarantee the solvability of the Kolmogorov-Nikol’skiy problem for Fejer sums and classes of Poisson integrals.
Keywords:Fourier series, Kolmogorov-Nikol’skiy problem, class of Poisson integrals.