节点文献
一类捕食-食饵系统正周期解的存在性(英文)
Existence of positive periodic solution for a kind of predator-prey systems
【摘要】 讨论了具有时滞的非自治三种群捕食-食饵扩散系统.利用重合度理论,得到了正周期解存在的一些充分条件.
【Abstract】 A non-autonomous predator-prey diffusive system of three species with delay was analyzed.By using Gaines and Mawhin’s continuation theorem of coincidence degree theory,some sufficient conditions for the existence of positive periodic solution were established for the system.
【关键词】 捕食-食饵系统;
正周期解;
重合度;
【Key words】 predator-prey system; positive periodic solution; coincidence degree;
【Key words】 predator-prey system; positive periodic solution; coincidence degree;
【基金】 国家自然科学基金青年基金项目(10801051);上海市重点学科建设项目(B407)
- 【文献出处】 华东师范大学学报(自然科学版) ,Journal of East China Normal University(Natural Science) , 编辑部邮箱 ,2010年06期
- 【分类号】O175
- 【下载频次】45