| Existence of at Least Two Periodic Solutions of a Ratio-dependent Predator-prey Model with Exploited Term |
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| 作者姓名： | De-sheng Tian Xian-wu Zeng |
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| 作者单位： | [1]College of Mathematics and Statistics, Wuhan University, Wuhan 430072, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （No.19531070） |
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| 摘 要： |
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| 关 键 词： | 数学模型 周期解 一致程度 存在性 |
| 收稿时间： | 2004-06-28 |
| 修稿时间： | 2004-06-282005-01-31 |
Existence of at Least Two Periodic Solutions of a Ratiodependent Predator-prey Model with Exploited Term |
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| De-sheng Tian Xian-wu Zeng.Existence of at Least Two Periodic Solutions of a Ratio-dependent Predator-prey Model with Exploited Term[J].Acta Mathematicae Applicatae Sinica,2005,21(3):489-494. |
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| Authors: | De-sheng Tian Xian-wu Zeng |
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| Institution: | (1) College of Mathematics and Statistics, Wuhan University, Wuhan, 430072, China |
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| Abstract: | In this paper, we study a non-autonomous ratio-dependent predator-prey model with exploited term. By means of the coincidence degree theory, we establish a sufficient condition for the existence of at least two positive periodic solutions of this model. |
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| Keywords: | Predator-prey model ratio-dependent exploited term periodic solution coincidence degree |
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