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具有Holling Ⅲ类功能反应捕食者食脉冲系统正周期解的存在性

高海音1,2, 张晓颖1,2, 翁世有1,2, 王克2   

  1. (1. 长春大学 应用数学系, 长春 130022; 2. 东北师范大学 数学与统计学院, 长春 130022)
  • 收稿日期:2005-03-01 修回日期:1900-01-01 出版日期:2006-03-26 发布日期:2006-03-26
  • 通讯作者: 高海音

Existence of Positive Periodic Solution for Predator-Prey Impulsive Differential System with Holling Ⅲ Functional Response

GAO Hai-yin1,2, ZHANG Xiao-ying1,2, WENG Shi-you1,2, WANG Ke2   

  1. (1. Department of Applied Mathematics, Changchun University, Changchun 130022, China; 2. School of Mathematics and Statics, Northeast Normal University, Changchun 130022, China)
  • Received:2005-03-01 Revised:1900-01-01 Online:2006-03-26 Published:2006-03-26
  • Contact: GAO Hai-yin

摘要: 利用重合度理论中的连续性定理研究一类具有Holling Ⅲ类功能反应捕食者食脉冲系统正周期解的存在性, 建立了存在正周期解的充分条件, 推广 并改进了已有的相关结果.

关键词: 捕食者食脉冲系统, 正周期解, 脉冲微分方程, 重合度

Abstract: We investigated the existence of positive periodic solution to predatorprey impulsive differential system with Holling Ⅲ functional response. A set of verifiable sufficient conditions of positive periodic solution for the system are obtained by means of continuity theorem in co incidence degree. The paper generalizes and improves the results in the literature.

Key words: predator-prey system, positive periodic solution, impulsive differential equation, coincidence degree

中图分类号: 

  • O175.08