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JOURNALS // Doklady Akademii Nauk // Archive

1996, Volume 348, Number 1


MATHEMATICS
A problem of Riemann–Hilbert type for a nonregular system of partial differential equations
A. A. Andryan
7
The generalized Fourier method for solving a mixed problem for hyperbolic systems
A. I. Vagabov
11
Continuation of differentiable functions, and quasiconformal mappings on Carnot groups
S. K. Vodopyanov, A. V. Greshnov
15
Closure of orbits and residual finiteness with respect to the conjugacy of free amalgamated products
P. A. Zalesskii, O. I. Tavgen'
19
The simplest polymetric geometries
G. G. Mikhailichenko
22
On the uniqueness of the solution of the Gellerstedt problem for a general system of Chaplygin equations
M. M. Ovezova
25
On the first boundary value problem for a parabolic equation with changing time direction
S. A. Tersenov
27

MATHEMATICAL PHYSICS
Two superconducting disks in the field of a vertical electric dipole
V. F. Kravchenko, V. T. Erofeenko, V. I. Pustovoĭt
30

COMPUTER SCIENCE
A version of cluster analysis that eliminates cluster as an inexact concept
M. K. Kozlov
34

PHYSICS
Optical Casimir non-locality – the source of macroscopic size effect in second harmonic generation at $\mathrm{Si}:\mathrm{SiO}_2$ structure
O. A. Aktsipetrov, E. D. Mishina, A. A. Nikulin, A. N. Rubtsov, A. A. Fedyanin, C. van Hasselt, M. A. C. Devillers, Th. Rasing
37
Photoluminescence of the three-dimensional and two-dimensional carries in the $\mathrm{N}$$\mathrm{AlGaAs}/\mathrm{GaAs}$-heterostructures
Yu. V. Gulyaev, V. G. Mokerov, A. V. Guk, Yu. V. Fedorov, Yu. V. Khabarov
42
Photoelement with a photocathode based on $\mathrm{In}_{0.53}\mathrm{Ga}_{0.47}\mathrm{As}/\mathrm{InP}/\mathrm{Ag}$ heterostructure with Schottky barrier for the spectral range of $0.97$$1.7$ $\mu$m
È. L. Nolle, A. M. Prokhorov, M. Ya. Shchelev
45

GEOPHYSICS
Acoustical stimulation of biological activity of the oil and some others microorganisms
A. S. Belyakov, L. V. Gorpenko, E. P. Isakova, V. S. Lavrov, A. V. Nikolaev
104
On tidal variations in Earth rotation due to continents movement
B. A. Kagan, G. A. Kivman
107
The history of the Northern hemisphere mean temperature for the last 11000 years
V. V. Klimenko, V. A. Klimanov, M. V. Fedorov
111


© Steklov Math. Inst. of RAS, 2025