Vol 27, No 1 (2019)

DOI: https://doi.org/10.15421/24192701

Published: online 31.08.2019, print 08.09.2019

Table of Contents

Preamble
 
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1-2

Articles

The Bojanov-Naidenov problem for trigonometric polynomials and periodic splines
E.V. Asadova, V.A. Kofanov
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3-13
On generalized characteristics of smoothness of functions and on average $$$\nu$$$-widths in the space $$$L_2(\mathbb{R})$$$
S.B. Vakarchuk, M.B. Vakarchuk
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14-27
Extremal problems for non-periodic splines on real domain and their derivatives
K.A. Danchenko, V.A. Kofanov
PDF (Українська)
28-38
The homology groups of the space $$$\Omega_n(m)$$$
A.M. Pasko
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39-44
On interpolation of operator, which is the sum of weighted Hardy-Littlewood and Cesaro mean operators
B.I. Peleshenko
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45-54
On the Landau-Kolmogorov inequality between $$$\| f' \|_{\infty}$$$, $$$\| f \|_{\infty}$$$ and $$$\| f''' \|_1$$$
D. Skorokhodov
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55-66
The uniqueness of the best non-symmetric $$$L_1$$$-approximant with a weight for continuous functions with values in KB-space
M.Ye. Tkachenko, V.M. Traktynska
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67-74