Acta mathematica scientia,Series B ›› 2019, Vol. 39 ›› Issue (2): 429-448.doi: 10.1007/s10473-019-0209-3

• Articles • Previous Articles     Next Articles

ON A MULTI-DELAY LOTKA-VOLTERRA PREDATOR-PREY MODEL WITH FEEDBACK CONTROLS AND PREY DIFFUSION

Changyou WANG1, Nan LI2, Yuqian ZHOU1, Xingcheng PU3, Rui LI3   

  1. 1. College of Applied Mathematics, Chengdu University of Information Technology, Chengdu 610225, China;
    2. Department of Applied Mathematics, Southwestern University of Finance and Economics, Chengdu 610074, China;
    3. College of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2018-02-22 Revised:2018-06-28 Online:2019-04-25 Published:2019-05-06
  • Contact: Nan LI E-mail:2972028881@qq.com
  • Supported by:
    This work is supported by the Sichuan Science and Technology Program of China (2018JY0480), the Natural Science Foundation Project of CQ CSTC of China (cstc2015jcyjBX0135), the National Nature Science Fundation of China (61503053).

Abstract: This article is focusing on a class of multi-delay predator-prey model with feedback controls and prey diffusion. By developing some new analysis methods and using the theory of differential inequalities as well as constructing a suitable Lyapunov function, we establish a set of easily verifiable sufficient conditions which guarantee the permanence of the system and the globally attractivity of positive solution for the predator-prey system. Furthermore, some conditions for the existence, uniqueness and stability of positive periodic solution for the corresponding periodic system are obtained by using the fixed point theory and some new analysis techniques. In additional, some numerical solutions of the equations describing the system are given to verify the obtained criteria are new, general, and easily verifiable. Finally, we still solve numerically the corresponding stochastic predator-prey models with multiplicative noise sources, and obtain some new interesting dynamical behaviors of the system.

Key words: predator-prey model, delay, diffusion, permanence, attractivity, periodic solution

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