1977

DOI: https://doi.org/10.15421/24770001

Published: online 06.10.2021, print 31.12.1977

Table of Contents

Preamble
 
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1-2

Articles

Sharp estimates of approximation of classes of differentiable functions by entire functions
V.F. Babenko, A.Yu. Gromov
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3-6
On one extremal property of Korovkin's means
V.F. Babenko, S.A. Pichugov
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7-8
Exact values of approximation by infinitely differentiable splines on some classes of functions
V.L. Velikіn
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9-12
On widths of one class of periodic functions
V.G. Doronin, A.A. Ligun
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12-17
Exact values of the best mean approximations by algebraic polynomials of $$$W^r_L$$$ classes ($$$r=1,2$$$)
V.A. Kofanov
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18-20
On approximation, in the strong sense, of functions of two variables by trigonometric polynomials
V.V. Lipovik, N.P. Khoroshko
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20-24
On the best choice of nodes at interpolation of functions by even Hermitian splines
A.D. Malysheva
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25-30
On multidimensional Jackson's theorem
S.A. Pichugov
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30-32
Extremal subspaces in the problem about widths of $$$H_{\omega}$$$ classes in the space of continuous functions of two variables
L.B. Khodak
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32-34
On approximation of nonperiodic functions by algebraic polynomials in $$$L_p$$$ metric ($$$0 < p < 1$$$)
L.B. Khodak
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35-38
To the question of approximation of continuous periodic functions by trigonometric polynomials
V.V. Shalaev
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39-43
Estimation of deviation of continuous $$$2\pi$$$-periodic functions from corresponding trigonometric polynomials of S.N. Bernstein's type
N.Ya. Yatsenko
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43-46
On uniform convergence of one class of double trigonometric series
M.I. Alkhimov
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47-49
Summation of trigonometric Fourier integrals by method of G.F. Voronoi
L.G. Bojtsun
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50-53
Absolute summability of power $$$p$$$ of series, associated with conjugate Fourier series, by triangular matrix methods
N.I. Volkova, N.S. Novikova
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54-60
Absolute summability of conjugate Fourier integrals by Voronoi-Nerlund method
N.I. Volkova, N.P. Ogol
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60-65
$$$L$$$-summability of series, associated with Fourier series
Ye.M. Kilberg
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66-69
Absolute and strong summability in degree $$$p \geqslant 1$$$ of series, associated with Fourier series, by matrix methods
N.T. Polovina
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69-74
Absolute and strong summability in degree $$$p \geqslant 1$$$ of $$$r$$$ times differentiated Fourier series and $$$r$$$ times differentiated conjugate Fourier series by matrix methods
N.T. Polovina
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74-79
On uniform convergence of infinite products
K.M. Slepenchuk, G.A. Barbashova
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80-84
Tauberian theorems in the case of strong summability in degree $$$p$$$ of double series
T.N. Yarkovaia
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84-89
Tauberian theorems in the case of absolute summability in degree $$$p$$$ of double series
T.N. Yarkovaia
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90-95
On differential inequalities of S.A. Chaplygin related to limit Cauchy problem for sets of ordinary differential equations of first order
I.I. Bezvershenko
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95-100
On regular movements of a material rod
L.I. Boiko
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100-104
Canonical polynomials in the problem about the bend of circular plate of variable thickness
O.V. Bugrim, Ye.S. Sinaiskii
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105-108
On numerical solution by method of V.K. Dzyadyk of Goursat problem with constant coefficients
V.P. Burlachenko, Yu.I. Romanenko
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109-112
On some properties of normally-inflective complexes with simple inflective center in $$$E_3$$$
Ye.N. Ishchenko
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112-116
Algorithm of forced search for extremum of unimodal criterion
L.V. Korol
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117-120
On solution of one linear problem with initial and boundary conditions
S.S. Kritskaia
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121-124
Research of solution of the problem about longitudinal oscillation of heterogeneous rod in presence of linear law of relaxation and after-effect
S.S. Kritskaia
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125-129
On one algorithm of covering a graph by heterogeneous chains
N.A. Likholat
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130-133
Algorithm of search identification with forced search for extremum
A.I. Mikhalev, L.V. Korol
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134-137
Statics of conjugate rotation hulls
V.P. Privarnikova
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137-141
On one problem, associated with lateral oscillations of elastic-viscous-relaxating rod
D.I. Rogach
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141-148
Construction of approximate solution and stability map of one set of differential equations with periodic coefficients, which can be reduced to canonical form
V.M. Shevchenko, V.O. Semenov
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148-152
Asymptotic research of deformations and stresses of the ring that sustains the seam of elliptic bottom and conic shell
B.N. Yakovlev
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153-157
Asymptotic research of deformations of elliptic bottom and conic shell
B.N. Yakovlev
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157-161