节点文献
一类具有时滞的比率依赖型捕食者-食饵系统周期正解的存在性(英文)
Existence of postitive periodic solution of a ratio-dependent predator-prey system with time delays。
【摘要】 考虑一类具有时滞的比率依赖型捕食者-食饵系统,利用重合度理论中的延拓定理,得到系统存在正周期解的充分条件.
【Abstract】 A periodic ratio-dependent predator-prey system with time delays isinvestigated.By using a continuation theorem based on coincidence degree theory,the conditions for the existence of periodic solution of the system are obtained.
【关键词】 捕食者-食饵系统;
时滞;
周期解;
重合度;
【Key words】 predator-prey system; time delay; periodic solution; coincidence degree;
【Key words】 predator-prey system; time delay; periodic solution; coincidence degree;
- 【文献出处】 纯粹数学与应用数学 ,Pure and Applied Mathematics , 编辑部邮箱 ,2006年01期
- 【分类号】O175.1
- 【被引频次】6
- 【下载频次】109