Morse Decompositions for Periodic General Dynamical Systems and Differential Inclusions |
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Authors: | Yejuan Wang Desheng Li |
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Institution: | 1. School of Mathematics and Statistics, Lanzhou University, Lanzhou, 730000, People??s Republic of China 2. Department of Mathematics, Tianjin University, Tianjin, 300072, People??s Republic of China
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Abstract: | We first establish the Morse decomposition theory of periodic invariant sets for non-autonomous periodic general dynamical systems (set-valued dynamical systems). Then we discuss the stability of Morse decompositions of periodic uniform forward attractors. We also apply the abstract results to non-autonomous periodic differential inclusions with only upper semi-continuous right-hand side. We show that Morse decompositions are robust with respect to both internal and external perturbations (upper semi-continuity of Morse sets). Finally as an application we study the effect of small time delays to asymptotic behavior of control systems from the point of view of Morse decompositions. |
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