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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2025 Volume 65, Number 6, Pages 918–945 (Mi zvmmf11994)

Optimal control

Optimal disturbances of stationary and periodic solutions to delay systems in mathematical immunology

Yu. M. Nechepurenkoa, M. Yu. Khristichenkoab, G. A. Bocharovac, D. S. Grebennikovac

a Marchuk Institute of Numerical Mathematics of the Russian Academy of Sciences, Moscow
b National Research Centre "Kurchatov Institute", Moscow
c I. M. Sechenov First Moscow State Medical University

Abstract: This work is devoted to optimal disturbances of stationary and periodic solutions to systems of delay differential equations, their computation, and use in mathematical immunology. Original methods for computing the stationary and periodic solutions themselves and tracing them along the system parameters, as well as methods for computing optimal disturbances for these solutions are briefly described. The performance of the described methods is demonstrated using the example of the well-known Marchuk–Petrov model of the antiviral immune response with parameter values corresponding to the infection caused by hepatitis B viruses.

Key words: delay differential equations, stationary solutions, periodic solutions, stability, optimal disturbances, Marchuk–Petrov model, hepatitis B.

UDC: 517.977.5

Received: 26.11.2024
Accepted: 27.03.2025

DOI: 10.31857/S0044466925060075


 English version:
Computational Mathematics and Mathematical Physics, 2025, 65:6, 1272–1299

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© Steklov Math. Inst. of RAS, 2025