Vol. 49 No. 6 (1997)

Published: 25.06.1997

Research articles

Approximation of classes of convolutions by linear methods of summation of Fourier series

D. M. Bushev

739–753
- PDF (Ukrainian)
- Springer
On the best approximations and rate of convergence of decompositions in the root vectors of an operator

G. V. Radzievskii

754–773
- PDF (Russian)
- Springer
Construction of approximations for a stationary solution of a system of singular ordinary differential equations

I. M. Romanyshyn, L. A. Synyts’kyi

774–778
- PDF (Ukrainian)
- Springer
Spectral problems for canonical systems of finite-difference equations on an axis

L. A. Sakhnovich

779–788
- PDF (Russian)
- Springer
Structure of locally graded nonnilpotent CDN[]-groups

N. N. Semko

789–798
- PDF (Ukrainian)
- Springer
The existence of a bifurcation value of a parameter of a system of differential equations with deviating argument

L. V. Nasykhova, M. T. Terekhin

799–805
- PDF (Russian)
- Springer
Conditional symmetry of the Navier-Stokes equations

N. I. Serov, L. O. Tulupova, V. I. Fushchich

806–813
- PDF (Ukrainian)
- Springer
Application of one constructive method for the construction of non-Lie solutions of nonlinear evolution equations

R. M. Cherniga

814–827
- PDF (Ukrainian)
- Springer

Short communications

On the optimal renewal of bilinear functionals in linear Normed spaces

V. F. Babenko, A. A. Rudenko

828–831
- PDF (Russian)
- Springer
Boundary-value problems for systems of difference equations

О. A. Boichuk

832–835
- PDF (Russian)
- Springer
Conditions of nonoscillation of binomial systems of differential equations

M. K. Bugir

836–841
- PDF (Russian)
- Springer
On ascending and subnormal subgroups of infinite factorized groups

Glovanni F. De, Ya. P. Sysak, S. Franclosi

842–848
- PDF (Russian)
- Springer
Construction of nonnilpotent biprimary dispersible groups with metacyclic subgroups of nonprimary index

L. I. Zuzuk

849–851
- PDF (Ukrainian)
- Springer
Congruences and quasiidentities on unars

G. Ch. Kurinnyi

852–856
- PDF (Ukrainian)
- Springer
Stable difference scheme for a nonlinear Klein-Gordon equation

L. P. Nizhnik

857–859
- PDF (Ukrainian)
- Springer
A criterion of diagonalizability of a pair of matrices over the ring of principal ideals by common row and separate column transformations

V. M. Petrichkovich

860–862
- PDF (Ukrainian)
- Springer
On the existence and uniqueness of a solution of a linear stochastic differential equation with respect to a logarithmic process

A. Yu. Pilipenko

863–871
- PDF (Russian)
- Springer
On the application of Ateb-functions to the construction of a solution of a nonlinear Klein-Gordon equation

B. I. Sokil

872–877
- PDF (Ukrainian)
- Springer
A remark on quasianalytic vectors for a pair of anticommuting operators

S. V. Tishchenko

878–880
- PDF (Russian)
- Springer

Vol. 49 No. 6 (1997)

Research articles

Approximation of classes of convolutions by linear methods of summation of Fourier series

On the best approximations and rate of convergence of decompositions in the root vectors of an operator

Construction of approximations for a stationary solution of a system of singular ordinary differential equations

Spectral problems for canonical systems of finite-difference equations on an axis

Structure of locally graded nonnilpotent CDN[]-groups

The existence of a bifurcation value of a parameter of a system of differential equations with deviating argument

Conditional symmetry of the Navier-Stokes equations

Application of one constructive method for the construction of non-Lie solutions of nonlinear evolution equations

Short communications

On the optimal renewal of bilinear functionals in linear Normed spaces

Boundary-value problems for systems of difference equations

Conditions of nonoscillation of binomial systems of differential equations

On ascending and subnormal subgroups of infinite factorized groups

Construction of nonnilpotent biprimary dispersible groups with metacyclic subgroups of nonprimary index

Congruences and quasiidentities on unars

Stable difference scheme for a nonlinear Klein-Gordon equation

A criterion of diagonalizability of a pair of matrices over the ring of principal ideals by common row and separate column transformations

On the existence and uniqueness of a solution of a linear stochastic differential equation with respect to a logarithmic process

On the application of Ateb-functions to the construction of a solution of a nonlinear Klein-Gordon equation

A remark on quasianalytic vectors for a pair of anticommuting operators

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