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MATHEMATICS
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On the simplicity of periodic products of groups
S. I. Adian
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745 |
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A variational principle for one-dimensional lattice Gibbs random fields with a countable number of states
B. M. Gurevich
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749 |
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On two classes of Kleinian groups
N. A. Gusevskii
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753 |
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The smoothing functional principle for regularizing equations with a closed operator
O. A. Liskovets
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757 |
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On the theory of boundary value problems for equations with discontinuous coefficients
V. K. Romanko
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761 |
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MATHEMATICAL PHYSICS
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On the solvability of a nonlinear integrodifferential system with unknown boundary
V. I. Chekhlov
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765 |
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CYBERNETICS AND THE REGULATION THEORY
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Application of sliding modes in problems of electrical machine control
D. Izosimov, B. Matich, V. I. Utkin, A. Shabanovich
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769 |
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MECHANICS
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Diffusion-heat instability of laminar flames in pipes
A. M. Grishin, V. M. Agranat, V. N. Bertsun
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773 |
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On the mechanical properties of manipulation systems
A. A. Kobrinskii
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777 |
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The effect of normal stresses on the realization of selective transfer regime during the friction
N. M. Mikhin, V. N. Litvinov, I. V. Kragelskii
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781 |
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FLUID MECHANICS
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Reduction of turbulent friction in viscoelastic fluids
M. A. Goldshtik, V. V. Zametalin
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785 |
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GEOPHYSICS
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Sources of biggest geoid undulations according to the seismic and gravitation data
L. P. Vinnik, A. A. Lukk, M. Mirzokurbonov, Yu. A. Tarakanov, T. N. Cherevko
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789 |
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Refracted wave godograph inversion
V. S. Geiko
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793 |
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PHYSICS
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On the influence of polarization upon the effects of internal electron scattering in accumulators
V. N. Baier, V. M. Katkov, V. M. Strakhovenko
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797 |
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Investigation of triplet-singlet conversion of polyatomic molecules
N. A. Borisevich, S. I. Blinov, A. V. Dorokhin, G. A. Zalesskaya, A. A. Kotov
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801 |
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Effect of the gap between metallic plates on their heat interaction at cryogenic temperature
S. S. Kutateladze, N. A. Rubtsov, A. Ya. Baltsevich
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805 |
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Determination of thermodynamic functions of gases and liquids from the $p,v,T$-experimental data by the method of electronic- computer mathematical simulation
V. V. Sychev, G. A. Spiridonov
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808 |
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CRYSTALLOGRAPHY
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Refined crystal structure of cubic skeleton zinc borate, $\mathrm{Zn}_4\mathrm{O}[\mathrm{B}_6\mathrm{O}_{12}]$
O. S. Bondareva, Yu. K. Egorov-Tismenko, M. A. Simonov, N. V. Belov
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815 |
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The effect of intrusion packing defects on the diffraction pattern
A. S. Kagan, A. P. Unikel
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818 |
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Crystal structure of simplest strontium aluminate with three-dimensional framework
N. N. Nevsky, L. D. Glasser, V. V. Ilyukhin, N. V. Belov
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821 |
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The mechanism of $\alpha$-, $\beta$-transition of $\mathrm{Si}_3\mathrm{N}_4$ during the annealing
P. V. Pavlov, N. V. Belov
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825 |
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Crystallochemistry of lanthanide compounds with the $\mathrm{Cu}_3\mathrm{Au}$ lattice
L. S. Palatnik, I. I. Fal'ko
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828 |
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The decomposition of an arbitrary three-dimensional complex curve into its components
E. A. Soldatov, V. V. Ilyukhin, È. A. Kuz'min, N. V. Belov
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832 |
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Поправки к статье “О краевых задачах для некоторых многомерных систем уравнений в частных производных первого порядка”
(ДАН. т. 236, № 5, 1977 г.)
A. D. Dzhuraev
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