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1958, Volume 120, Number 4  


MATHEMATICS
On conformal transformations of rings and the fundamental basis of the space of functions analytic in an elementary neighbourhood of an arbitrary continuum
V. D. Erokhin
689
An algorithm for constructing the Chebyshev polynomial approximation to a continuous function
S. I. Zukhovitskii
693
On the general theory of equations involving a deviating argument
G. A. Kamenskii
697
On linear methods of summation
A. M. Olevskii
701
On uniqueness theorems for ordinary differential equations
A. I. Perov
704
The necessary and sufficient conditions for the stability in the whole of a homogeneous system of three differential equations
V. A. Pliss
708
On the convergence of formal solutions of non-linear integral equations
V. V. Pokornyi
711
The maximum correlation coefficient (symmetrical case)
O. V. Sarmanov
715
Riemannian spaces having their curvature bounded below by a positive number
V. A. Toponogov
719
Hellinger's operator integral and some of its uses
Yu. L. Shmul'yan
722

AERODYNAMICS
The stability of an elastic plate in a supersonic flow
Tung Ming-teh
726

FLUID MECHANICS
The spread of perturbations in media with a non-linear dependence of stresses on strains and temperature
G. Ya. Galin
730

ASTRONOMY
Magnetic dipole field in planetary nebulae
G. A. Gurzadyan
734

MATHEMATICAL PHYSICS
The analytical properties of the amplitude of a process involving a variable number of particles
A. A. Logunov, A. N. Tavkhelidze
739

PHYSICS
On the results of the electron concentration determinations in the external region of the ionosphere made on the basis of radiosignals from the first sputnik
Ya. L. Alpert, F. F. Dobryakova, E. F. Chudesenko, B. S. Shapiro
743
Equilibrium ionization of particles
A. A. Arshinov, A. K. Musin
747
On the possibility of raising the resolution of the emission microscope by means of an electron mirror
Yu. V. Vorob'ev
751
The dependence of coercive force on temperature for thin samples of nickel and iron-nickel alloys
E. Kondorskiy, M. Rosenberg
753
Brittle failure of single zinc crystals
V. I. Likhtman, L. A. Kochanova, L. S. Bryukhanova
757

GEOPHYSICS
The calculation of a turbulent horizontal diffusion of admixture spots in a sea
R. V. Ozmidov
761

CHEMISTRY
Catalytic transformations of 2-methylthiophene under the influence of water vapour
A. A. Balandin, L. I. Sovalova, T. A. Slovokhotova
775
An optical investigation of the conformations of some gem-substituted cyclohexanes
M. I. Batuev, A. A. Akhrem, A. D. Matveeva, A. V. Kamernitskii, I. N. Nazarov
779
The cell effect and the thermal stability of polymers
B. A. Dolgoplosk, B. L. Erusalimskii, E. B. Milovskaya, G. P. Belonovskaya
783
A new method for the production of oxyalkylphosphinic acids
V. K. Kuskov, G. F. Bebikh, A. D. Yaroschenko
786
Catalytic cyclization of $n$-pentane and $n$-hexane with formation of a five-member ring
A. L. Liberman, G. V. Loza, Chang Ming-nan, B. A. Kazanskii
789
The interaction of $\beta$-cyanovinylketones with secondary amines
A. N. Nesmeyanov, M. I. Rybinskaya
793
Kinetics of hydrolysis of boron triffluoride coordination compounds
I. G. Ryss
797
Hydrogen exchange reactions of alkyl chlorides with hydrochloric acid and of tertiary butyl alcohol when the hydroxyl is substituted with chlorine
V. N. Setkina, D. N. Kursanov
801
Colour phenomena in $\mathrm{N}$-phenylglycyl derivatives of $\alpha$-aminoanthraquinone
E. A. Smirnov
805
Acylation of the nucleus of aromatic compounds in the presence of metals
I. P. Tsukervanik
809
The use of frontal analysis in gaseous-liquid chromatography of radioactive and not-radioactive gases
M. I. Yanovskii, G. A. Gazieva
812

PHYSICAL CHEMISTRY
Surface tension of strong electrolyte solutions
V. E. Bravina
815
On the activation energy of the diffusion creep of metallic nonordered solid substitution solutions
Ya. E. Geguzin
819
Study of films on the mercury electrode
A. Ya. Gokhshtein, Ya. P. Gokhshtein
823
The effect of polarization on the mechanical properties of steel
G. V. Karpenko, R. I. Kripyakevich
827
Chemical adsorption and catalytic oxidation of carbon monoxide on zinc oxide and its electrically conducting solid solutions
N. P. Keier, G. I. Chizhikova
830
The energy of Coulomb interaction between a hydroxyl group of silica gel and a benzene molecule
A. V. Kiselev, D. P. Poshkus
834
Chemical reactions of atoms having energies comparable with the activation energy
B. N. Provotorov
838
The maximum ultimate deformation arid related shear strength of a structure, as influenced by aluminium naphthenate oleogel concentration
V. A. Fedotova, A. A. Trapeznikov
841
The influence of nickel on the electrochemical and corrosion behaviour of steel
G. M. Florianovich, Ya. M. Kolotyrkin, N. K. Smirnova
845

Письмо в редакцию
N. Ya. Vilenkin
 
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