Approximation of the classes of convolutions of periodic functions by Zygmund sums in integral metrics by U. Z. Hrabova

Get full text

Order Estimates for the Best Approximations and Approximations by Fourier Sums of the Classes of (ψ, β)-Differential Functions by U. Z. Hrabova, A. S. Serdiuk

Get full text

Estimates of uniform approximations by Zygmund sums on classes of convolutions of periodic functions by A. S. Serdiuk, U. Z. Hrabova

Get full text

Approximation of continuous functions given on the real axis by three-harmonic Poisson operators by U. Z. Hrabova, I. V. Kalchuk

Get full text

Approximation of classes Cψβ,∞ by three-harmonic Poisson integrals in uniform metric (low smoothness) by U. Z. Hrabova, I. V. Kalchuk

Get full text

Solution of the Kolmogorov-Nikol'skii problem for three-harmonic Poisson integrals on classes Cψ(β,∞) by U. Z. Hrabova, I. V. Kalchuk

Get full text

Approximation of functions from the classes WrβHα by Weierstrass integrals by U. Z. Hrabova, I. V. Kalchuk, T. A. Stepaniuk

Get full text

Approximative properties of the three-harmonic Poisson integrals on the classes W by U. Z. Hrabova, I. V. Kalchuk, L. I. Filozof

Get full text

Approximation of the classes Wβ Hα by three-harmonic Poisson integrals by I. V. Kalchuk, V. I. Kravets, U. Z. Hrabova

Get full text

On approximation of classes W1∞ by Poisson sums by M. V. Hembarskyi, U. Z. Hrabova, I. V. Kalchuk

Get full text