Abstract
Lyapunov reducibility of any bounded and sometimes unbounded linear homogeneous differential system to some bounded linear homogeneous differential equation is established. The preservation of the additional property of periodicity of coefficients is guaranteed, and for two-dimensional or complex systems the constancy of their coefficients is preserved. The differences in feasibility of asymptotic and generalized Lyapunov reducibility from Lyapunov one are indicated.
Similar content being viewed by others
References
V. A. Zaitsev, “Global Attainability and Global Lyapunov Reducibility of Two- and Three-Dimensional Linear Control Systems with Constant Coefficients,” Vestn. Udmurt. Univ., Matem. 1, 31 (2003).
I. N. Sergeev, “Limit Values of Lyapunov Exponents of Linear Equations,” Differ. Uravn., 46 (11), 1664 (2010).
B. P. Demidovich, Lectures in Mathematical Theory of Stability (Nauka, Moscow, 1967) [in Russian].
I. N. Sergeev, “Control of Solutions to a Linear Differential Equation,” Vestnik Mosk. Univ., Matem. Mekhan., No. 3, 25 (2009).
I. N. Sergeev, “Oscillation, Rotatability, and Wandering Characteristic Indicators for Differential Systems Determining Rotations of Plane,” Vestnik Mosk. Univ., Matem. Mekhan., No. 1, 21 (2019).
B. F. Bylov, R. E. Vinograd, D. M. Grobman, and V. V. Nemytskii, Theory of Lyapunov Exponents and its Application to Stability Issues (Nauka, Moscow, 1966) [in Russian].
V. P. Basov, “Structure of Solutions in a Right Differential System,” Vestnik Leningr. Univ., No. 12, 3 (1952).
Yu. S. Bogdanov, “To the Theory of Linear Differential Equations,” Doklady Akad. Nauk SSSR 104 (6), 813 (1955).
D. M. Grobman, “Characteristic Indicators of Systems Close to Linear Ones,” Matem. Sbornik 30(72) (1), 121 (1952).
Acknowledgments
The author is grateful to V. V. Bykov for valuable remarks contributed to significant improvement in the text of the paper.
Author information
Authors and Affiliations
Corresponding author
Additional information
Russian Text © The Author(s). 2019. published in Vestnik Moskovskogo Universiteta. Matematika. Mekhanika. 2019. Vol. 74, No. 3, pp. 39–44.
About this article
Cite this article
Sergeev, I.N. Reducibility of Linear Differential Systems to Linear Differential Equations. Moscow Univ. Math. Bull. 74, 121–126 (2019). https://doi.org/10.3103/S0027132219030045
Received:
Published:
Issue Date:
DOI: https://doi.org/10.3103/S0027132219030045