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基于比率的离散型捕食系统的周期解 被引量:5

Periodic Solutions of a Discreted Ratio-Dependent Predator-Prey System
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摘要 针对一类基于比率的离散型捕食系统 ,利用重合度理论给出了该系统正周期解的存在性判据 . Using the coincidence degree thoery, sufficient conditions for the existence of positive periodic solutions of a discreted ratio dependent predator prey system is established.
出处 《北京理工大学学报》 EI CAS CSCD 北大核心 2003年第2期143-146,共4页 Transactions of Beijing Institute of Technology
基金 国家自然科学基金资助项目 ( 198710 0 5)
关键词 捕食者—食饵系统 正周期解 重合度理论 predator prey system positive periodic solution coincidence degree theory
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参考文献8

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