| 一类具有时滞和捕获的食物链模型的周期解 |
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| 引用本文： | 毛书学,徐瑞,李云飞.一类具有时滞和捕获的食物链模型的周期解[J].军械工程学院学报,2011(4):74-78. |
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| 作者姓名： | 毛书学 徐瑞 李云飞 |
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| 作者单位： | 军械工程学院基础部,河北石家庄050003 |
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| 基金项目： | 国家自然科学基金资助项目（11071254） |
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| 摘 要： | 研究一类具有时滞和捕获的食物链模型,借助重合度理论中的Mawhin延拓引理,得到了保证系统至少存在8个正周期解的充分条件。
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| 关 键 词： | 时滞 捕获 重合度理论 周期解 |
Periodic Solutions of a Food Chain Model with Time Delay and Harvesting Term |
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| MAO Shu-Xue,XU Rui,LI Yun-Fei.Periodic Solutions of a Food Chain Model with Time Delay and Harvesting Term[J].Journal of Ordnance Engineering College,2011(4):74-78. |
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| Authors: | MAO Shu-Xue XU Rui LI Yun-Fei |
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| Institution: | (Department of Basic Courses,Ordnance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | In this paper,we study a food chain model with time delay and harvesting term.By using Mawhin＇s continuation theorem of coincidence degree theory,sufficient conditions which guarantee the existence of at least eight positive periodic solutions are obtained. |
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| Keywords: | time delay harvesting term coincidence degree theory periodic solution |
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