| 具有时滞和Beddington-DeAngelis功能性反应的N种群食物链系统的周期解 |
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| 引用本文： | 刘振杰.具有时滞和Beddington-DeAngelis功能性反应的N种群食物链系统的周期解[J].黑龙江大学自然科学学报,2008,25(2):277-280. |
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| 作者姓名： | 刘振杰 |
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| 作者单位： | 哈尔滨学院数学与计算机学院,哈尔滨,150086 |
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| 基金项目： | Supported by the Foundation for Scientific Research Projects of the Education Department of Heilongjiang Province ( 11513043 ) |
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| 摘 要： | 利用重合度理论研究了具有时滞和Beddington-DeAngelis功能性反应的n种群食物链系统的周期解存在性,运用不等式技巧得到了该生物系统正周期解存在的一个充分条件.
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| 关 键 词： | 周期解 Beddington-DeAnglis功能性反应 时滞 重合度 periodic solution Beddington-DeAngelis functional response time delay coincidencedegree |
| 文章编号： | 1001-7011(2008)02-0277-04 |
| 修稿时间： | 2007年1月16日 |
Periodic solutions of N-species food-chain system with Beddington- DeAnglelis functional response and time delays |
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| Liu Zhenjie.Periodic solutions of N-species food-chain system with Beddington- DeAnglelis functional response and time delays[J].Journal of Natural Science of Heilongjiang University,2008,25(2):277-280. |
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| Authors: | Liu Zhenjie |
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| Abstract: | Nonlinear periodic N-species food-chain system with Beddington-DeAngelis functional response and time delays is investigated. By using the continuation theorem of coincidence degree theory and inequality skills, an easily verifiable sufficient condition is derived for the existence of positive periodic solutions of the system. |
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| Keywords: | periodic solution Beddington-DeAngelis functional response time delay coincidencedegree |
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