| 具有脉冲收获的捕食系统的周期解 |
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| 引用本文： | 董淑转,任运平,刘俊俏. 具有脉冲收获的捕食系统的周期解[J]. 数学的实践与认识, 2009, 39(17) |
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| 作者姓名： | 董淑转 任运平 刘俊俏 |
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| 作者单位： | 山西省运城学院,应用数学系,山西,运城,044000 |
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| 基金项目： | 山西省高校科技研究开发项目，运城学院科研项目 |
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| 摘 要： | 考虑了一类具有阶段结构和脉冲收获的捕食模型.讨论了解的非负性和有界性.利用重合度定理,得到了正周期解存在的充分条件.
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| 关 键 词： | 阶段 重合度 时滞 周期解 |
Periodic Solution of Predator-prey System with Impulsive Harvesting and Stage-Structured |
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| DONG Shu-zhuan,REN Yun-ping,LIU Jun-qiao. Periodic Solution of Predator-prey System with Impulsive Harvesting and Stage-Structured[J]. Mathematics in Practice and Theory, 2009, 39(17) |
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| Authors: | DONG Shu-zhuan REN Yun-ping LIU Jun-qiao |
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| Abstract: | We consider a predator-prey model, which has stage structure and impulsive harvesting. We discuss the boundedness of solution. By using the continuation theorem of coincidence degree theory, a sufficient condition is obtained for the existence of a positive periodic solution of this system. |
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| Keywords: | staged structure coincidence degree delay periodic solution |
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