Vol 49 No 5 (1997) | Ukrains’kyi Matematychnyi Zhurnal

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Published: 25.05.1997

Research articles

On additive inequalities for intermediate derivatives of functions given on a finite interval

V. F. Babenko, V. A. Kofanov, S. A. Pichugov

619–628
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Convergence rates and finite-dimensional approximation for a class of ill-posed variational inequalities

Byong Nguen

629–637
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Small deviations of solutions of stochastic differential equations in tube domains

V. A. Gasanenko

638–650
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Topologically free subsets of universal algebras

E. G. Zelenyuk

651–661
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Carleman problem for two pairs of functions in a ring

S. Yu. Khachaturov

662–671
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On asymptotic decompositions of o-solutions in the theory of quasilinear systems of difference equations

A. V. Kostin, I. V. Skrypnik

672–677
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On infinite groups whose noncyclic norm has a finite index

F. N. Liman

678–684
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Estimate of an error of the averaging method on a semiaxis for a multifrequency resonance system

R. I. Petryshyn, O. M. Pokhyla

685–690
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Equilibrium in quantum systems of particles with magnetic interaction. Fermi and bose statistics

W. I. Skrypnik

691–698
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On the Lie algebra structures connected with Hamiltonian dynamical systems

R. G. Smirnov

699–705
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On the order of local approximation of functions by trigonometric polynomials that are partial sums of averaging operators

M. A. Sukhorolskyi

706–714
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Short communications

Existence, uniqueness, and dependence on a parameter of solutions of differential-functional equations with ordinary and partial derivatives

Ya. I. Bigun

715–719
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Critical cases of stability of one nonautonomous essentially nonlinear equation of the nth order

I. E. Vitrychenko

720–724
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An example of a complete orthonormal system in a Hilbert space of generalized functions

O. V. Gladkivs’ka

725–728
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Periodic groups are not *-wild

S. A. Kalutskii, Yu. S. Samoilenko

729–730
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Analytic representation of periodic solutions of linear differential systems

K. K. Kenzhebaev, V. N. Laptinskii

731–735
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Obituaries

Wilhelm Illich Fushchich

EditorialBoard

736
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