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具有时滞和比率的捕食系统正周期解的存在性
Persistence of Positive Periodic Solution of Predator-Prey System with Continuous Time Delay and Functional Response and Diffusion
【摘要】 利用重合度理论中的延拓定理讨论了具有连续时滞和比率型功能反应的非自治扩散捕食系统的全局周期解的存在性,得到了周期解存在的充分条件。
【Abstract】 A predator-prey system with continuous time delay and ratio-dependent functional response is studied by using the method of coincidence degree.Sufficient condition is established for persistence of positive periodic solution of the system.
【关键词】 比率型功能性反应;
捕食者-食饵系统;
正周期解;
【Key words】 ratio-dependent functional response; predator-prey system; positive periodic solution;
【Key words】 ratio-dependent functional response; predator-prey system; positive periodic solution;
【基金】 国家自然科学基金资助项目(10461002);国家数学天元基金资助项目(A0324644)
- 【文献出处】 广西师范大学学报(自然科学版) ,Journal of Guangxi Normal University(Natural Science Edition) , 编辑部邮箱 ,2007年01期
- 【分类号】O175.2
- 【被引频次】4
- 【下载频次】81