| 一类具有脉冲和变时滞的离散比率依赖食物链模型周期解的存在性 |
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| 引用本文： | 佘连兵.一类具有脉冲和变时滞的离散比率依赖食物链模型周期解的存在性[J].六盘水师范高等专科学校学报,2013,25(1):60-70. |
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| 作者姓名： | 佘连兵 |
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| 作者单位： | 六盘水师范学院数学系,贵州六盘水,553001 |
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| 摘 要： | 应用Graines和Mawhin的重合度理论中的延拓定理讨论了一类具有脉冲和变时滞的食物链模型的正周期解的存在性。
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| 关 键 词： | 概周期解 脉冲方程 正周期解 重合度理论 |
Existence Periodic Solution of a Discrete Ratio-dependent Food Chain Model with Variable Delays with Impulses |
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| SHE Lian-bin.Existence Periodic Solution of a Discrete Ratio-dependent Food Chain Model with Variable Delays with Impulses[J].Journal of Liupanshui Teachers College,2013,25(1):60-70. |
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| Authors: | SHE Lian-bin |
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| Institution: | SHE Lian-bin (Department of Mathematics,Liupanshui Normal University, Liupanshui 553001,China) |
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| Abstract: | Sufficient and realistic conditions are obtained for the existence of positive periodic solutions for a discrete time nonautonomous food chain model with impulses, by using the continuation theorem base on Graines and Mawhin＇ s coincidence degree. |
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| Keywords: | almost periodic solution impulsive equations positive periodic solution coincidence degree |
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