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1958, Volume 119, Number 5  


MATHEMATICS
An algorithm of the automation of the numerical solution of a plane Dirichlet problem for Laplace's equation
M. A. Aleksidze
847
Spectra of dynamical systems generated by stationary Gaussian processes
I. V. Girsanov
851
On the stable system of partial indices in the Hilbert problem for many unknown functions
I. Ts. Gokhberg, M. G. Krein
854
A method for averaging standard equations containing a “quasicyclic” angular coordinate
V. A. Grobov
858
A new metric invariant of transient dynamical systems and automorphisms in Lebesgue spaces
A. N. Kolmogorov
861
Boundary problems and biorthogonal expansions in Banach spaces
A. L. Krylov
865
The reduction of unbounded not self-adjoined operators to a triangular form
A. V. Kuzhel'
868
On the expansion of the tensor product of the proper Lorenz group principal series representations into irreducible representations
M. A. Naimark
872
Internal homologies
V. A. Rokhlin
876
Some kinds of local nomograms
E. T. Smorkachev
880
Generalized solutions of a quasilinear differential equation in Banach space
C. Foias, G. Gussi, V. Poénaru
884
Permutability of factors in $\Pi$-factorizations of finite groups
S. A. Chunikhin
888
Characteristic polynomials of third order rational symmetric matrices
A. P. Shapiro
890
A generalized Riemann–Hilbert problem in the case of a negative exponent
W. Schmidt
893

MECHANICS
Torsion of cylindrical shafts with circular grooves
A. A. Skorobagatko
896

FLUID MECHANICS
The non-uniqueness of the solution to the under-water wing problem
N. N. Moiseev, A. M. Ter-Krikorov
899

THEORY OF ELASTICITY
Equilibrium stability of rods on the mathematical theory of elasticity
K. F. Voitsekhovskaya
903

ASTRONOMY
A single interpretation of the various pulsation types of stellar variability
S. A. Zhevakin
907

PHYSICS
The structure of the absorption and photoelectric conductance spectra of $\mathrm{CdS}$ crystals at $20^\circ$K
V. L. Broude, V. V. Eremenko, N. N. Chikovani
911
An investigation of $(n,\alpha)$ and $(n,t)$ reaction on $\mathrm{Be}^9$
S. S. Vasil'ev, V. V. Komarov, A. M. Popova
914
Fluctuations in quartz crystal oscillators
M. E. Zhabotinskii, P. E. Zil'berman
918
Phosphorescence and fluorescence quantum yield ratios as related to the position of the fluorescence spectrum
V. V. Zelinskii, V. P. Kolobkov
922
A study of the dependence of certain properties on temperature for ferrites in the centimetre wave range
V. A. Kiseleva, E. I. Kondorskiy
926

CHEMISTRY
Determination of the purity and crystallization temperature of certain hydrocarbons in small samples (1–2 ml)
A. G. Anikin, G. M. Dugacheva
939
Types of equilibrium diagrams for ternary systems based on titanium
I. I. Kornilov, P. B. Budberg
942
The stereochemistry of the diene-condensation of 1-$\alpha$-acetoxyvinyl-$\Delta^1$-cyclohexene with maleic anhydride
I. N. Nazarov, V. F. Kucherov, V. M. Andreev, G. M. Segal
945
Ferrocene sulphonic acid reactions
A. N. Nesmeyanov, È. G. Perevalova, S. S. Churanov, O. A. Nesmeyanova
949
The nature of the water in heteropolycompounds. Tungsten polyacids
E. Ya. Rode
953
The polymerization of isobutylene under the influence of boron trifluoride adsorbed on aluminium oxide
A. V. Topchiev, L. A. Alyavdina
957

PHYSICAL CHEMISTRY
The influence of structural features and surface properties on the froth flotation extraction of poorly floatable lead minerals
E. A. Anfimova, V. A. Glembotsky, I. N. Plaksin, A. S. Shcheveleva
961
Variations in ion transfer numbers and the suspension effect in liquid suspensoid diaphragms
O. N. Grigorov, Yu. M. Chernoberezhsky
964
The conduction of a topochemical diffusion process at a constant rate
D. P. Dobychin
967
Adsorption of sulphur on iron from acid solutions of hydrogen sulphide
Z. A. Iofa
971
Diffusion in the critical region of ternary solutions
I. R. Krichevskii, N. E. Khazanova, L. R. Linshits
975
Metastable iron – chromium diagram
A. G. Lesnik
978
An investigation of the copolymerization of isoprene and divinyl by butyl lithium
G. V. Rakova, A. A. Korotkov
982
On the passivating properties of sulphate ions
I. L. Rozenfel'd, V. P. Maksimchuk
986
The desoxydizing ability of carbon in vacuum
A. M. Samarin, R. A. Karasev
990

Поправки к статье “Инварианты второго порядка кватернарной дифференциальной квадратичной формы” (ДАН, т. 113, № 6, 1957 г.)
P. I. Petrov
 
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