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一类具反馈控制和比率型功能反应食物链系统周期解的存在性

李 辉, 王艺霏   

  1. 北华大学 数学学院, 吉林 吉林 132013
  • 收稿日期:2008-04-01 修回日期:1900-01-01 出版日期:2009-03-26 发布日期:2009-03-26
  • 通讯作者: 李 辉

Existence of Positive Periodic Solution of Food Chain System with Feedback Controls and Ratiodependent Functional Response

LI Hui, WANG Yifei   

  1. College of Mathematics, Beihua University, Jilin 132013, Jilin Province, China
  • Received:2008-04-01 Revised:1900-01-01 Online:2009-03-26 Published:2009-03-26
  • Contact: LI Hui

摘要: 利用重合度理论中的延拓定理, 讨论具有反馈控制和比率型功能反应食物链系统周期解的存在性, 得到了保证周期解存在的充分条件, 拓展了连续且具比率型的动力学模型.

关键词: 捕食者食饵系统, 比率型功能性反应, 反馈控制, 周期解, 重合度

Abstract: The existence of positive periodic solution of food chain system with feedback controls and ratiodependent response was studied by the method of coincidence, a set of sufficent conditions were derived. The continuous and ratio dependent dynamical model was improved.

Key words: predatorprey system, ratiodependent functional res ponse, feedback control, periodic solution, coincence degree

中图分类号: 

  • O175.8