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离散Hassell-Varley型功能性反应系统的正周期解
Positive Periodic Solutions for a Discrete System with Hassell-Varley Type Functional Response
【摘要】 研究具有Hassell-Varley型功能性反应的捕食者—食饵系统并建立了非自治差分方程模型.利用新的解的估计技巧,并运用拓扑度的同伦不变性,得到了这类系统正周期解存在的充要条件.
【Abstract】 This paper deals with a predator-prey system with Hassell-Varley type functional response.The non-autonomous difference model is established.Using a new estimation techinque of solutions and the invariance property of homotopy,the necessary and sufficient conditions are derived.
【关键词】 Hassell-Varley型功能性反应;
周期解;
捕食者—食饵系统;
【Key words】 Hassell-Varley type functional response; periodic solutions; predator-prey system;
【Key words】 Hassell-Varley type functional response; periodic solutions; predator-prey system;
【基金】 国家自然科学基金(10771055,10801056);广东省自然科学基金(8451063101000730)
- 【文献出处】 数学的实践与认识 ,Mathematics in Practice and Theory , 编辑部邮箱 ,2009年12期
- 【分类号】O175
- 【被引频次】10
- 【下载频次】87