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Necessary condition of solvability of the control problem of the asynchronous spectrum of linear periodic systems with non-degenerate matrix in control in non-resonant case

https://doi.org/10.67268/1812-5093-2026-34-1-76-84

EDN: DQVILP

Abstract

A linear periodic system with a constant non-degenerate matrix under control is considered. The program control is periodic, and its period is incommensurable with the period of the coefficient matrix. The admissible set of such periodic controls is called irregular. The problem is to choose such a control from this admissible set so that the now quasi-periodic system has a partially irregular periodic solution with a given frequency spectrum whose period coincides with the period of the control. Such problem is called the control problem of the asynchronous spectrum with an irregular admissible set. To solve it, the original system is reduced to some linear nonhomogeneous system of lower dimension. The non-resonant case is studied, when the corresponding homogeneous system has no irregular periodic solutions. A necessary condition for the solvability of the control problem of the asynchronous spectrum with an irregular admissible set is obtained.

About the Authors

A. K. Demenchuk
Institute of Mathematic of the National Academy of Sciences of Belarus
Belarus

Minsk



E. K. Makarov
Institute of Mathematic of the National Academy of Sciences of Belarus
Belarus

Minsk



References

1. Hale J. Oscillations in Nonlinear Systems. Moscow, Mir, 1966 (in Russian).

2. Yakubovich V. A., Starginskii V. M. Linear Differential Equations with Periodic Coefficients and Their Applications. Moscow, Nauka, 1972 (in Russian).

3. Babakov I. M. Theory of Oscillations. Moscow, Drofa, 2004 (in Russian).

4. Gusev A. F., Novoselova M. V. Applied Theory of Oscillations. Tver, TvGTU, 2017 (in Russian).

5. Strelkov S. P. Introduction to the Theory of Oscillations. Moscow, Lan, 2024 (in Russian).

6. Papaleksi N. D. On one case of parametrically related systems. Journ. Of Phys. Acad.of Sc. of USSR, 1939, vol. 1, pp. 373–379 (in Russian).

7. Penner D. I., Duboshinskii Ya. B., Duboshinskii D. B. Oscillations with self-regulating interaction time. Doklady Acad. of Sci. of USSR, 1972, vol. 204, no. 5, pp. 1065–1066 (in Russian).

8. Penner D. I., Duboshinsky D. B., Kozakov M. I., Vermel A. S., Galkin Yu. V. Asynchronous excitation of undamped oscillations. Uspekhi fizicheskikh nauk, 1973, vol. 109, no. 1, pp. 402–406 (in Russian).

9. Massera J. L. Observaciones sobre les soluciones periodicas de ecuaciones diferenciales. Bol. de la Facultad de Ingenieria, 1950, vol. 4, no. 1, pp. 37–45.

10. Kurzweil Ya., Veyvoda O. On periodic and almost periodic solutions of systems of ordinary differential equations. Czechosl. Math. J., 1955, vol. 5, no. 3, pp. 362–370 (in Russian).

11. Erugin N. P. On periodic solutions of differential equations. Priklad. Math. and Mech., 1956, vol. 20, is. 1, pp. 148–152 (in Russian).

12. Gaishun I. V. Total derivative equations with periodic coefficients. Doklady Acad. of Sci. of BSSR, 1979, vol. 23, no. 8, pp. 684–686 (in Russian).

13. Grudo E. I., Demenchuk A. K. On periodic solutions with incommensurate periods of linear inhomogeneous periodic differential systems. Differential Equations, 1987, vol. 23, no. 3, pp. 409–416 (in Russian).

14. Borukhov V. T. Strongly invariant subspaces non-autonomous linear periodic systems and their solutions with period, incommensurable with the period of the system. Differential Equations, 2018, vol. 54, no. 5, pp. 585–591 (in Russian).

15. Lasunsky А. В. On periodic solutions of a system of difference equations whose period is coprime with the period of the system. Trudy Inst. Mat. Mekh. UrO RAN, 2025, vol. 31, no. 1, pp. 110–118 (in Russian).

16. Demenchuk А. K. Partially irregular almost periodic solutions of ordinary differential systems. Math. Bohemica, 2001, vol. 126, no. 1, pp. 221–228.

17. Landa P. S., Duboshinskii Ya. B. Self-oscillatory systems with high-frequency energy sources. Uspekhi Fiz. Nauk, 1989, vol. 158, is. 4, pp. 729–742 (in Russian).

18. Demenchuk А. K. Problem of control of the spectrum of strongly irregular periodic oscillations. Doklady NAN Belarusi, 2009, vol. 53, no. 4, pp. 37–42 (in Russian).

19. Demenchuk A. K. Control of the spectrum of irregular oscillations of linear systems with the coincidence ranks of the control matrix and the extended matrix. Differential Equations, 2011, vol. 47, no. 9, pp. 1241–1246 (in Russian).

20. Demenchuk A. K. Control of an asynchronous spectrum of linear systems with a non-degenerate average value of the coefficient matrix. Trudy Instituta Matematiki, 2020, vol. 28, № 1–2, pp. 11–16 (in Russian).

21. Demenchuk A. K. Asynchronous oscillations in differential systems. Conditions of existence and control. Saarbrucken, Lambert Academic Publishing, 2012 (in Russian).

22. Demenchuk A. K., Makarov E. K. The problem of controlling an asynchronous spectrum of linear periodic systems with an irregular allowable set is a necessary condition for solvability. Proceeding of the Institute of Mathematics of the NAS of Belarus, 2025, vol. 33, no. 2, pp. 90–95 (in Russian).

23. Levitan B. M. Almost Periodic Functions. Moscow, GTTI, 1953 (in Russian).

24. Demenchuk A. K. Dependence between the components of a strongly irregular quasi-periodic solution of a linear homogeneous algebraic system. Proceeding of the Institute of Mathematics of the NAS of Belarus, 2024, vol. 32, no. 1, pp. 67–74 (in Russian).

25. Demidovich B. M. Lectures on Mathematical Theory of Stability. Moscow, Nauka, 1967 (in Russian).


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For citations:


Demenchuk A.K., Makarov E.K. Necessary condition of solvability of the control problem of the asynchronous spectrum of linear periodic systems with non-degenerate matrix in control in non-resonant case. Proceedings of the Institute of Mathematics of the NAS of Belarus. 2026;34(1):76-84. (In Russ.) https://doi.org/10.67268/1812-5093-2026-34-1-76-84. EDN: DQVILP

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