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JOURNALS // Problemy Fiziki, Matematiki i Tekhniki (Problems of Physics, Mathematics and Technics) // Archive

2020, Issue 2(43)


PHYSICS
One- and two-soliton solutions of the Korteweg-de Vries equation in various coordinate systems
M. A. Knyazev
7
Kinetics of condensation during adiabatic expansion of an ablative silver jet at atmospheric pressure conditions
K. V. Kozadaev
11
Structural and scale levels of deformation of the surface layer of nickel
S. V. Korotkevich, V. V. Sviridova
17
Formation of structured coatings based on carbon and polyacrylamide, influence of thermal treatment on their phase composition and morphology
A. S. Rudenkov, M. A. Yarmolenko
23
Reflection of a normally incident electromagnetic wave from a periodic biisotropic structure on a substrate
A. I. Talkachov, V. N. Kapshai, A. A. Shamyna
28
Optical properties and morphology of polarization coating based on the SiO$_2$ and ZrO$_2$ layers
N. N. Fedosenko, V. A. Emelyanov, E. A. Kulesh
39
Structure, morphology and optical characteristics of CdS thin films
V. V. Khoroshko, V. F. Gremenok, I. N. Tsyrelchuk, O. D. Aksenov, V. K. Li
43

MATHEMATICS
On maximal abnormal subgroups close to $\mathfrak{F}$-abnormal
R. V. Borodich, R. A. Kucherov
46
On products of generalized abnormal supersoluble subgroups of finite groups
A. F. Vasil'ev
52
On one operation on the formations of finite groups
T. I. Vasilyeva, A. G. Koranchuk
58
On skew elements in polyadic groups of special form
A. M. Gal'mak
64
On the coincidence of generalized smoothness modules on some class of functions
G. N. Kazimirov
69
Finite simple groups all the maximal subgroups of which have odd index
S. F. Kamornikov, V. N. Tyutyanov
71
Finite groups with some subnormal 2-maximal subgroups
M. N. Konovalova, V. S. Monakhov
75
The center-focus problem and reflecting function
V. I. Mironenko, V. V. Mironenko
80
A criterion for the existence and uniqueness of polyorthogonal polynomials of the second type
N. V. Ryabchenko, D. A. Volkov, A. P. Starovoitov
85

INFORMATION SCIENCE
Query synthesis and search of alternatives in the system of information support for decision making
S. F. Lipnitsky
91


© Steklov Math. Inst. of RAS, 2026