|
MATHEMATICS
|
|
Verbal subgroups of free groups
I. U. Bronshtein
|
255–257 |
|
|
General boundary conditions for Markov processes with a countable set of states
E. B. Dynkin
|
258–261 |
|
|
On the admissibility of Monte-Carlo methods
S. M. Ermakov
|
262–263 |
|
|
Positive periodic solutions of a class of differential equations of second order
Yu. S. Kolesov
|
264–266 |
|
|
Fundamental solutions of singular partial differential equations with variable coefficients
V. I. Kononenko
|
267–270 |
|
|
$T$-invariance of the coefficients of quasi-linear hyperbolic equations
V. B. Korotkov
|
271–274 |
|
|
Degenerating quasi-linear elliptic equations and systems
A. I. Koshelev
|
275–278 |
|
|
Utilization of arithmetic progressions of $k$ th order for construction of bases of an algebra of primitively-recursive functions
I. A. Lavrov
|
279–282 |
|
|
Oblique derivative problem in three-dimensional space
M. B. Malyutov
|
283–286 |
|
|
Unicellularity and non-unicellularity of weighted shift operators
N. K. Nikol'skii
|
287–290 |
|
|
Test of a multi-dimensional polynomial hypothesis
V. P. Palamodov
|
291–293 |
|
|
Approximation by elements of convex sets
S. Ya. Havinson
|
294–297 |
|
|
Existence of a countable set of periodic motions in a neighborhood of a homoclinic curve
L. P. Shilnikov
|
298–301 |
|
|
Certain imbeddings of ordered groups
È. G. Shutov
|
302–305 |
|
|
Variation principle of dynamics in the linear theory of elasticity
L. Ya. Ainola
|
306–308 |
|
|
PHYSICS
|
|
|
Two-photon absorption in the $\mathrm{CaF}_2:\mathrm{Ho}^{3+}$ crystal
B. V. Ershov, Yu. P. Pimenov, A. M. Prokhorov, V. B. Fedorov
|
309–312 |
|
|
X-Ray diffraction study of the iodine crystal structure at high pressure
S. S. Kabalkina, T. N. Kolobyanina, L. F. Vereshchagin
|
313–316 |
|
|
Spectroscopic investigation of the gas discharge in the case of argon ion optical quantum generators
V. F. Kitaeva, Yu. I. Osipov, N. N. Sobolev
|
317–319 |
|
|
Electromagnetic waves in the general relativity
È. Ya. Maldybaeva
|
320–321 |
|
|
Hydrodynamic equations in the theory of superconduction
A. V. Svidzinskii, V. A. Slyusarev
|
322–325 |
|
|
Momentum and energy of gravitational waves
M. F. Shirokov, L. I. Bud'ko
|
326–329 |
|
|
A contribution to the theory of dislocations in two atomic rows model of crystal
A. A. Yudin, I. L. Mirkin
|
330–333 |
|
|
GEOPHYSICS
|
|
|
Prognostication of the temperature in the interior part of the Earth
A. M. Pliushch
|
338–340 |
Contact us: