| 具有保护区和避难所效应的捕食系统周期解的存在性 |
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| 引用本文： | 贾素娟,魏凤英.具有保护区和避难所效应的捕食系统周期解的存在性[J].福州大学学报(自然科学版),2012,40(4):423-428. |
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| 作者姓名： | 贾素娟 魏凤英 |
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| 作者单位： | 福州大学数学与计算机科学学院 |
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| 基金项目： | 福建省自然科学基金资助项目(2010J01005);福州大学科技发展基金资助项目(2010-XQ-24) |
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| 摘 要： | 研究一类具有保护区和避难所效应的捕食系统周期解存在性.利用重合度理论,得到系统至少存在8个正周期解的充分条件,并给出例子说明结果的有效性.
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| 关 键 词： | 正周期解 重合度 捕食系统 避难所 |
Existence of periodic solutions to predator-prey systems with protected areas and refuges |
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| JIA Su-juan,WEI Feng-ying.Existence of periodic solutions to predator-prey systems with protected areas and refuges[J].Journal of Fuzhou University(Natural Science Edition),2012,40(4):423-428. |
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| Authors: | JIA Su-juan WEI Feng-ying |
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| Institution: | (College of Mathematics and Computer Science,Fuzhou University,Fuzhou,Fujian 350108,China) |
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| Abstract: | The existence of periodic solution for a kind of predator-prey systems with protected areas and refuges are discussed in this paper.By means of the coincidence degree theory,the sufficient conditions of existence for at least eight positive periodic solutions are given.An example is given to illustrate the effectiveness of our results. |
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| Keywords: | positive periodic solutions coincidence degree predator-prey systems refuges |
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