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一类具有阶段结构的非自治时滞捕食系统的概周期解
Almost Periodic Solution for a Non-autonomous Prey-predator System with Stage-structure and Time-delay
【摘要】 研究了一类具有Michaelis-Menton比例依赖型功能性反应的非自治捕食系统,考虑了食饵种群的年龄阶段结构,得到了系统一致持久生存和最终灭绝的充分条件;当系统是周期系统和概周期系统时,通过构造适当的Lyapunov泛函和Lyapunov函数,建立了相应系统正周期解和概周期正解存在唯一及全局渐近稳定的充分判据.
【Abstract】 The author considered a nonautonomouos prey-predator system with Michaelis-Menton type functional response and time-delay,also,stage-structure was considered in the prey species.We obtained the sufficient conditions for the persistence and the extinction for the system.What’s more,when the system is periodic or almost periodic,we derived the sufficient conditions for the existence and the global asymptotic stability of the responsive system by constructing a special Lyapunov function or Lyapunov functional.
【关键词】 阶段结构;
Michaelis-Menton型功能性反应;
持久性;
灭绝性;
周期解;
概周期解;
【Key words】 stage-structure; Michaelis-Menton type functional response; persistence; extinction; periodic solution; almost periodic solution;
【Key words】 stage-structure; Michaelis-Menton type functional response; persistence; extinction; periodic solution; almost periodic solution;
- 【文献出处】 河南师范大学学报(自然科学版) ,Journal of Henan Normal University(Natural Science) , 编辑部邮箱 ,2006年01期
- 【分类号】O175.1
- 【被引频次】3
- 【下载频次】92