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MATHEMATICS
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On two inverse problems for differential equations
A. L. Bukhgeim, V. G. Yakhno
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785–786 |
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Green's function for a three-dimensional Riemann space with two parallel branch lines
V. N. Vorobjev, A. B. Efimov, E. V. Konshina, L. F. Starostina
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787–789 |
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On Turing invariant sets
V. V. V'yugin
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790–793 |
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On the singular numbers of integral operators
B. D. Kotlyar
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794–796 |
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Parametrix for equations with degenerate symbol
V. V. Kucherenko
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797–800 |
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Asymptotic properties of shortest coverings
Yu. A. Mamatov
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801–803 |
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On approximation in algebraic groups over arbitrary fields
V. P. Platonov
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804–807 |
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On the pursuit problem relative to position in differential games
N. Satimov
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808–811 |
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The spectral decomposition of selfadjoint operators that are functions of operators acting on different variables
G. F. Us
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812–815 |
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Some variants of the abstract maximum principle
V. A. Yakubovich
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816–819 |
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GEOPHYSICS
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On the Korteweg–de Vries equations in the nonlinear theory of surface- and internal waves
A. I. Leonov
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820–823 |
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PHYSICS
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Quenching of metastable state of helium ion in the collision with neutral atoms
V. P. Zhdanov
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824–826 |
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Molar volumes and thermodynamic properties of neon at temperatures of $25$ – $150^\circ$ Ñ and pressures up to $7$ kbars
V. Ya. Maslennikova, A. N. Egorov, D. S. Tsiklis
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827–828 |
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Quasi-linear theory of satellite interaction of $\alpha$-particles with Alfvén waves in tokamak
A. B. Mikhailovskii, A. I. Pyatak, A. M. Fridman
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829–832 |
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One-dimensional quasi collapse of Langmuir waves during the parametric action on the plasma
J. S. Sigov, Yu. V. Khodyrev
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833–836 |
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CRYSTALLOGRAPHY
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Crystal structure of ferroelectric phase of
$\mathrm{NaNH}_4\mathrm{SeO}_4\cdot2\mathrm{H}_2\mathrm{O}$
A. I. Kruglik
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853–855 |
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Crystal structure of synthetic $K$-beryllium silicate from the group of epididymite
I. S. Naumova, E. A. Pobedimskaya, D. Yu. Pushcharovskii, N. V. Belov, Yu. N. Altukhova
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856–859 |
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Stability criteria for the structures (sphalerite – antifluorite) in the
$\mathrm{Zn}_3\mathrm{As}_2$ – $2\mathrm{A}^{\mathrm{II}}\mathrm{B}^{\mathrm{VI}}$ solid solutions
I. D. Olekseyuk
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860–862 |
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