J4 ›› 2010, Vol. 48 ›› Issue (03): 375-383.

• 数学 • 上一篇    下一篇

带Beddington-DeAngelis功能反应项的捕食者-食饵模型整体解的存在性和稳定性

许生虎| 李相锋   

  1. 陇东学院 数学系, 甘肃 庆阳 745000
  • 收稿日期:2009-05-25 出版日期:2010-05-26 发布日期:2010-05-19
  • 通讯作者: 许生虎 E-mail:xuluck2001@163.com

Existence and Stability of Global Solutions for a Prey-PredatorModel with Beddington-DeAngelis Functional Response

XU Shenghu, LI Xiang feng   

  1. Department of Mathematics, Longdong University, Qingyang 745000, Gansu Province, China
  • Received:2009-05-25 Online:2010-05-26 Published:2010-05-19
  • Contact: XU Shenghu E-mail:xuluck2001@163.com

摘要:

应用能量估计方法证明了带Beddington-DeAngelis功能反应项的捕食者-食饵交错扩散模型整体解的存在唯一性和一致有界性, 并通过构造Lyapunov函数给出了该模型唯一正平衡点全局渐近稳定的充分条件.

关键词: 自扩散, 交错扩散, Beddington-DeAngelis功能反应函数, 整体解, 稳定性

Abstract:

With the help of  the energy estimate method, the existence, uniqueness and uniform boundedness of global solutions for a cross diffusion preypredator model with BeddingtonDeAngelis functional response were proved.  The sufficient condition of global asymptotic stability of the unique positive equilibrium point for this model was given  by constructing Lyapunov function.

Key words: selfdiffusion, crossdiffusion, BeddingtonDeAngelis functional response, global solutions, stability

中图分类号: 

  • O175.26