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具脉冲效应的时滞Leslie捕食与被捕食系统正周期解的存在性
Existence of Positive Periodic Solution for a Delay Leslie Predator-Prey System with Impulsive Effect
【摘要】 该文利用重合度理论中的延拓定理,讨论具脉冲效应的时滞Leslie捕食与被捕食系统正周期解的存在性,得到了系统正周期解存在的充分条件.
【Abstract】 By using a continuation theorem based on coincidence degree theory,we study the existence of positive periodic solution for a delayed non-autonomous Leslie predator-prey system with impulsive effect.Sufficient conditions are obtained for the existence of positive periodic solution.
【关键词】 脉冲效应;
正周期解;
重合度;
Leslie捕食与被捕食系统;
【Key words】 impulsive effect; positive periodic solution; coincidence degree; Leslie predator-prey system;
【Key words】 impulsive effect; positive periodic solution; coincidence degree; Leslie predator-prey system;
【基金】 国家自然科学基金资助项目(10471086)
- 【文献出处】 上海大学学报(自然科学版) ,Journal of Shanghai University(Natural Science Edition) , 编辑部邮箱 ,2008年01期
- 【分类号】O175;Q141
- 【被引频次】1
- 【下载频次】161