Abstract
In this paper the stability of nonlinear nonautonomous systems under the frequently-acting perturbation is studied. This study is a forward development of the study of the stability in the Liapunov sense; furthermore, it is of significance in practice since perturbations are often not single in the time domain. Malkin proved a general theorem about thesubject. To apply the theorem, however, the user has to construct a Liapunov function which satisfies specified conditions and it is difficult to find such a function for nonlinear nonautonomous systems. In the light of the principle of Liapunov's indirect method, which is an effective method to decide the stability of nonlinear systems in the Liapunov sense, the authors have achieved several important conclusions expressed in the form of theorems to determine the stability of nonlinear nonautonomous systems under the frequently-acting perturbation.
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Communicated by Li Li
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Shu-shun, Z., Da-zhang, S. The theorem of the stability of nonlinear nonautonomous systems under the frequently-acting perturbation —Liapunov's indirect method. Appl Math Mech 12, 717–725 (1991). https://doi.org/10.1007/BF02018953
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DOI: https://doi.org/10.1007/BF02018953