Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Stability by linear approximation for time scale dynamical systems. / Kryzhevich, Sergey; Nazarov, Alexander.
в: Journal of Mathematical Analysis and Applications, Том 449, № 2, 2017, стр. 1911-1934.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Stability by linear approximation for time scale dynamical systems
AU - Kryzhevich, Sergey
AU - Nazarov, Alexander
PY - 2017
Y1 - 2017
N2 - We study systems on time scales that are generalizations of classical differential or difference equations and appear in numerical methods. In this paper we consider linear systems and their small nonlinear perturbations. In terms of time scales and of eigenvalues of matrices we formulate conditions, sufficient for stability by linear approximation. For non-periodic time scales we use techniques of central upper Lyapunov exponents (a common tool of the theory of linear ODEs) to study stability of solutions. Also, time scale versions of the famous Chetaev's theorem on conditional instability are proved. In a nutshell, we have developed a completely new technique in order to demonstrate that methods of non-authonomous linear ODE theory may work for time-scale dynamics.
AB - We study systems on time scales that are generalizations of classical differential or difference equations and appear in numerical methods. In this paper we consider linear systems and their small nonlinear perturbations. In terms of time scales and of eigenvalues of matrices we formulate conditions, sufficient for stability by linear approximation. For non-periodic time scales we use techniques of central upper Lyapunov exponents (a common tool of the theory of linear ODEs) to study stability of solutions. Also, time scale versions of the famous Chetaev's theorem on conditional instability are proved. In a nutshell, we have developed a completely new technique in order to demonstrate that methods of non-authonomous linear ODE theory may work for time-scale dynamics.
KW - time scale system
KW - linearization
KW - Lyapunov functions
KW - Millionschikov rotations
KW - stability
U2 - 10.1016/j.jmaa.2017.01.012
DO - 10.1016/j.jmaa.2017.01.012
M3 - Article
VL - 449
SP - 1911
EP - 1934
JO - Journal of Mathematical Analysis and Applications
JF - Journal of Mathematical Analysis and Applications
SN - 0022-247X
IS - 2
ER -
ID: 7733750