Vol 50 No 2 (1998) | Ukrains’kyi Matematychnyi Zhurnal

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Published: 25.02.1998

Research articles

On the decomposition of a perturbed operator of weighted shift

A. G. Baskakov

155–161
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Nonlinear boundary-value problems for systems of ordinary differential equations

О. A. Boichuk

162–171
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- Springer
Multidimensional integral-sum inequalities

S. D. Borisenko

172–177
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Linear extensions of dynamical systems on a torus that possess Green-Samoilenko functions

B. Wojtowicz, V. L. Kulik

178–188
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- Springer
Methods for the investigation of systems of differential equations with pulse influence

A. Y. Luchka

189–194
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Stochastic dynamics and Boltzmann hierarchy. I

D. Ya. Petrina, К. D. Petrina

195–210
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On an upper bound for the number of characteristic values of an operator function

G. V. Radzievskii

211–224
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The theory of the numerical-analytic method: Achievements and new trends of development. II

M. I. Ronto, A. M. Samoilenko, S. I. Trofimchuk

225–243
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Invariant tori of linear countable systems of discrete equations given on an infinite-dimensional torus

A. M. Samoilenko, Yu. V. Teplinsky

244–251
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Hierarchy of the matrix Burgers equations and integrable reductions in the Davey-Stewartson system

V. G. Samoilenko, Yu. M. Sidorenko

252–263
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Nonlinear differential equations with asymptotically stable solutions

V. E. Slyusarchuk

264–273
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Approximation of $\bar {\psi} - integrals$−integrals of periodic functions by Fourier sums (small smoothness). Iof periodic functions by Fourier sums (small smoothness). I

O. I. Stepanets

274-291
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On the structure of the general solution of a degenerate linear system of second-order differential equations

V. P. Yakovets

292–298
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On periodic solutions of nonlinear difference equations in the critical case

G. P. Pelyukh

304–308
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Investigation of invariant sets with random perturbations with the use of the Lyapunov function

A. N. Stanzhitskii

309–312
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Short communications

Averaging method in multifrequency systems with delay

Ya. I. Bigun

299–303
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- Springer