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JOURNALS // Doklady Rossijskoj Akademii Nauk. Mathematika, Informatika, Processy Upravlenia // Archive

2021, Volume 496


MATHEMATICS
Force evolutionary billiards and billiard equivalence of the Euler and Lagrange cases
V. V. Vedyushkina, A. T. Fomenko
5
On oscillation properties of self-adjoint boundary value problems of fourth order
A. A. Vladimirov, A. A. Shkalikov
10
Spectral analysis and solvability of Volterra integro-differential equations
V. V. Vlasov, N. A. Rautian
16
Continuous mean periodic extension of functions from an interval
V. V. Volchkov, Vit. V. Volchkov
21
Asymptotics of eigenvalues in the Orr–Sommerfeld problem for low velocities of unperturbed flow
D. V. Georgievskii
26
On the existence and structure of universal functions
M. G. Grigoryan
30
Application of a numerical-asymptotic approach to the problem of restoring the parameters of a local stationary source of anthropogenic pollution
M. A. Davydova, N. F. Elansky, S. A. Zakharova, O. V. Postylyakov
34
On stabilization of the Poisson integral and Tikhonov–Stieltjes means: two-sided estimate
V. N. Denisov
40
Analogues of classical goodness-of-fit tests for distribution tails
E. O. Kantonistova, I. V. Rodionov
44
Linear system of differential equations with a quadratic invariant as the Schrödinger equation
V. V. Kozlov
48
Problem of determining the anisotropic conductivity in electrodynamic equations
V. G. Romanov
53
Equiconvergence of spectral decompositions for Sturm–Liouville operators with a distributional potential in scales of spaces
A. M. Savchuk, I. V. Sadovnichaya
56
Uniqueness and existence theorems for solving problems of scattering electromagnetic waves by anisotropic bodies
A. B. Samokhin, Yu. G. Smirnov
59
Isometries on noncommutative symmetric spaces
F. A. Sukochev, Jinghao Huang
64

CONTROL PROCESSES
On global solvability of nonlinear equations with parameters
A. V. Arutyunov, S. E. Zhukovskiy
68
Sub-riemannian (2, 3, 5, 6)-structures
Yu. L. Sachkov, E. F. Sachkova
73

ERRATUM
Erratum to: Abductive reasoning in explanation problems of an observed effect
S. N. Vassilyev
79
Erratum to: Zero preservation for a family of multivalued functionals, and applications to the theory of fixed points and coincidences
Yu. N. Zakharyan, T. N. Fomenko
79


© Steklov Math. Inst. of RAS, 2026