Periodic solution and almost periodic solution for a nonautonomous Lotka-Volterra dispersal system with infinite delay |
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Authors: | Xinzhu Meng Lansun Chen |
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Affiliation: | a College of Science, Shandong University of Science and Technology, Qingdao 266510, PR China b Department of Applied Mathematics, Dalian University of Technology, Dalian 116024, PR China c Institute of Mathematics, Academy of Mathematics and System Sciences, Academia Sinica, Beijing 100080, PR China |
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Abstract: | This paper studies a nonautonomous Lotka-Volterra dispersal systems with infinite time delay which models the diffusion of a single species into n patches by discrete dispersal. Our results show that the system is uniformly persistent under an appropriate condition. The sufficient condition for the global asymptotical stability of the system is also given. By using Mawhin continuation theorem of coincidence degree, we prove that the periodic system has at least one positive periodic solution, further, obtain the uniqueness and globally asymptotical stability for periodic system. By using functional hull theory and directly analyzing the right functional of almost periodic system, we show that the almost periodic system has a unique globally asymptotical stable positive almost periodic solution. We also show that the delays have very important effects on the dynamic behaviors of the system. |
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Keywords: | Time delay Dispersal Hull equation Asymptotic stability Periodic solution and almost periodic solution |
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