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具有时滞和基于比率的一类捕食者-食饵系统全局周期解的存在性
Global Existence of Positive Periodic Solution of a Class Ratio-Dependent Predator-Prey System with Time Delays
【摘要】 利用重合度理论研究一类具有时滞和基于比率的捕食者-食饵系统的全局周期解的存在性,得到了周期正解存在的充分条件.
【Abstract】 In this paper,we investigate the global existence of positive periodic solution of a class delayed ratio-dependent predator-prey system with deviating arguments by using the method of coincidence degree theory.Some sufficient conditions are obtained for the global existence of positive periodic solution.
【关键词】 捕食者-食饵系统;
全局周期正解;
时滞;
比率依赖;
Holling-Tanner 系统;
重合度;
【Key words】 Predator-prey system; Global positive periodic solution; Time delay; Ratio-dependent; Holling-Tanner system; Coincidence degree;
【Key words】 Predator-prey system; Global positive periodic solution; Time delay; Ratio-dependent; Holling-Tanner system; Coincidence degree;
- 【文献出处】 生物数学学报 ,Journal of Biomathematics , 编辑部邮箱 ,2005年03期
- 【分类号】O175.1
- 【被引频次】29
- 【下载频次】170