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JOURNALS // Itogi Nauki i Tekhniki. Sovremennaya Matematika i ee Prilozheniya. Tematicheskie Obzory // Archive
2021, Volume 196
| General information | Contents |


Differential Equations and Optimal Control


Investigation of Beltrami fields by methods of integral geometry
A. L. Balandin 		3
Improvement methods for problems of optimal control of multistage processes
V. A. Baturin, S. Cheremnykh 		15
Chebyshev approximations do not need the Haar condition
V. I. Zorkal'tsev 		28
On solutions of the traveling wave type for the nonlinear heat equation
A. L. Kazakov, P. A. Kuznetsov, L. F. Spevak 		36
On the stability of coupled nonlinear oscillators
A. A. Kosov 		44
Algebraic approach to the construction of the wave equation for particles with spin 3/2
Yu. A. Markov, M. A. Markova, A. I. Bondarenko 		50
Simplified three-dimensional mathematical models of hydrodynamics and passive mass transfer in calm channel flows
K. A. Nadolin 		66
On the solvability of a degenerate hybrid system
P. S. Petrenko 		90
On the existence of periodic solutions of a fourth-order nonlinear system of parabolic equations
A. A. Kosov, È. I. Semenov 		98
The Cauchy problem for a degenerate operator-differential system of a special form in Banach spaces
O. V. Slastnaya 		105
Elements of global search in the general d.c. optimization problem
A. S. Strekalovskii 		114

© Steklov Math. Inst. of RAS, 2025