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具Hassell-Varley-Holling反应非自治捕食者-食饵系统的动力学分析 被引量:8

Dynamical Analysis of a Predator-prey System with Hassell-Varley-Holling Functional Response
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摘要 该文研究了具Hassell-Varley-Holling功能性反应的非自治系统.对一般非自治情形,研究了种群的持续生存和绝灭性.对于周期(概周期)情形,利用一个新的估计技巧和同伦不变性,得到了周期解(概周期解)存在的充要条件,同时研究了边界周期解(概周期解)的动力学行为.最后通过数值例子说明所得结论并给出了一些仍待研究的问题. This paper deals with a non-autonomous predator-prey system with Hassell-Varley- Holling functional response. The permanence and extinction are considered for general non- autonomous case. For periodic (almost periodic) case, necessary and sutticient criteria for the existence of positive periodic (almost periodic) solutions are derived by a new estimation technique and the invariance property of homotopy, the dynamics of boundary periodic (almost periodic) solutions are also investigated. The authors end this paper with some numerical simulations and interesting problems remaining.
出处 《数学物理学报(A辑)》 CSCD 北大核心 2011年第5期1295-1310,共16页 Acta Mathematica Scientia
基金 国家自然科学基金(10801056 10971057) 广东省自然科学基金(8451063101000730) 教育部博士点专项基金(200944071 10001)资助
关键词 Hassell-Varley-Holling功能性反应 捕食者-食饵系统 持续生存 绝灭性 周期解 概周期解. Hassell-Varley-Holling functional response Predator-prey system Permanence Extinction Periodic solution Almost periodic solution.
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