Vol 23 (2015)

DOI: https://doi.org/10.15421/24152301

Published: online 31.08.2015, print 08.09.2015

Table of Contents

Articles

Sharp inequalities of Kolmogorov type for non-periodic functions on the real domain
T.R. Bіkkuzhyna, V.A. Kofanov
PDF (Українська)
3-11
On $$$(W; p^{\alpha}(y))$$$-summation of trigonometrical Fourier integrals
L.G. Bojtsun, T.I. Rybnikova
PDF (Русский)
12-18
On the best polynomial approximation of $$$2\pi$$$-periodic functions in the $$$L_2$$$ space
S.B. Vakarchuk
PDF (Русский)
19-24
Systems of derivatives of polynomials, related to Chebyshev polynomials
V.V. Dostojna
PDF (Українська)
25-40
On the best non-symmetric $$$L_1$$$-approximations under the constraints on their derivatives
Ye.V. D'yakova, I.A. Shevchenko
PDF (Русский)
41-49
On classification of integrable functions
V.P. Motornyi, V.V. Sedunova
PDF (Русский)
50-57
Inequalities of Kolmogorov type for norms of hypersingular integrals with homogeneous characteristic of constant sign
N.V. Parfinovich
PDF (Русский)
58-69
Simple connectedness of one space of complex-valued functions
A.M. Pas'ko
PDF (Українська)
70-74
On convergence of Fourier integrals and Lipschitz spaces defined with differences of fractional order
B.I. Peleshenko, T.N. Semirenko
PDF (Русский)
75-87
Duality theorem for approximation problem with fuzzy statement
V.I. Ruban
PDF (Українська)
88-89
Criterion of the best non-symmetric approximant for multivariable functions in spaces $$$L_{p_1,...,p_n}$$$
V.M. Traktyns'ka, M.Ye. Tkachenko
PDF (Українська)
90-97
Two non-elementary integral functions defined using central factorial powers
T.P. Goy
PDF
98-106
On some generalization of pronormal subgroups in locally finite group
A.A. Pypka, N.A. Turbay
PDF
107-110