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MATHEMATICS
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Scattering of a plane wave on a singular potential
A. A. Arsen'ev
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1231 |
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Elements of infinite filtration in $K$-theory
V. M. Bukhshtaber, A. S. Mishchenko
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1234 |
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Estimate of the deformation of a convex surface as a function of the change in its intrinsic metric
Yu. A. Volkov
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1238 |
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A generalization of Ljapunov's first stability theorem for certain classes of differential equations in Banach spaces
A. E. Gel'man, E. N. Gersht
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1241 |
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Finding the extremum of a linear function on a convex set
A. A. Kaplan
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1245 |
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Spaces of closed subsets
V. Kuznetsov
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1248 |
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On the construction of cubature formulas with the smallest number of nodes
I. P. Mysovskikh
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1252 |
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Sections over zero-dimensional subsets of factor spaces of locally bicompact groups
B. A. Pasynkov
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1255 |
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The imbedding of certain classes of functions of a single variable
P. L. Ul'yanov
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1259 |
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The approximation of functions of real variables by algebraic polynomials in a closed region
A. L. Fuksman
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1263 |
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Generalized selfadjoint extensions of symmetric operators
È. R. Tsekanovskii
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1267 |
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ASTRONOMY
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Results of observations of 560 radio sources at 86 megacycle frequency
V. S. Artyukh, V. V. Vitkevich, R. D. Dagkesamanskii, V. N. Kozhuhov
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1271 |
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PHYSICS
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On density increase in helium II during rotation
R. A. Bablidze, A. A. Galkin, V. P. D'yakonov
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1273 |
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A theory of laser generation by two kinds of centre
G. Yu. Buryakovskii, V. S. Mashkevich
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1277 |
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Rayleigh waves in cadmium sulfide crystals
I. A. Viktorov
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1281 |
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Dielectric constant of crystals with allowance for delayed interaction
A. S. Davydov, V. A. Onischuk
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1285 |
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Vibrational relaxation in collisions between atoms and molecules
B. V. Kuksenko, S. A. Losev
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1289 |
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A new line of phase transitions in triglycinselenate in vestigated at high pressures by means of differential thermal analysis
I. N. Polandov, V. P. Mylov, B. R. Churagulov
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1293 |
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Special photographic emulsion with controlled sensitivity
D. M. Samoilovich, I. V. Ardashev, E. S. Barinova
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1296 |
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GEOPHYSICS
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The reality of the western drift of the geomagnetic field according to archeomagnetic data
S. P. Burlatskaya, T. B. Nechaeva, G. N. Petrova
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1301 |
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A non-geostrophic two-layer model of baroclinic instability in the atmosphere and in the ocean
B. A. Tareev
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1304 |
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CRYSTALLOGRAPHY
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Decoration of radioactive and irradiated potassium sulfate crystals by metal sols
V. V. Gromov, V. I. Trofimov, V. M. Lukyanovich, Vikt. I. Spitsyn
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1307 |
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The crystal structure of $\mathrm{Li}$-metasilicate, $\mathrm{Li}_2\mathrm{SiO}_3$
B. A. Maksimov, Yu. A. Kharitonov, V. V. Ilyukhin, N. V. Belov
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1309 |
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