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Asymptotical stability of almost periodic solution for an impulsive multispecies competition–predation system with time delays on time scales
Authors:Yongkun Li  Pan Wang
Affiliation:1. Department of Mathematics, Yunnan University, Kunming, Yunnan, China;2. School of Mathematics and Statistics, Xuchang University, Xuchang, Henan, China
Abstract:In this paper, we consider the almost periodic dynamics of an impulsive multispecies Lotka–Volterra competition system with time delays on time scales. By establishing some comparison theorems of dynamic equations with impulses and delays on time scales, a permanence result for the model is obtained. Furthermore, based on the permanence result, by studying the Lyapunov stability theory of impulsive dynamic equations on time scales, we establish the existence and uniformly asymptotic stability of a unique positive almost periodic solution of the system. Finally, we give an example to show the feasibility of our main results, and our example also shows that the continuous time system and its corresponding discrete time system have the same dynamics. Our results of this paper are completely new even if for both the case of the time scale urn:x-wiley:mma:media:mma4450:mma4450-math-0001 and the case of the time scale urn:x-wiley:mma:media:mma4450:mma4450-math-0002. Copyright © 2017 John Wiley & Sons, Ltd.
Keywords:multispecies competition–  predation system  impulse  permanence  almost periodic solution  time scales
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