| 一类基于比率和具有时滞的非自治的捕食者饵系统的周期解 |
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| 引用本文： | 耿立杰,阳平华. 一类基于比率和具有时滞的非自治的捕食者饵系统的周期解[J]. 沈阳师范大学学报(自然科学版), 2005, 23(2): 104-107 |
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| 作者姓名： | 耿立杰 阳平华 |
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| 作者单位： | 军械工程学院数学教研室,河北,石家庄,050003 |
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| 基金项目： | Research is partiallysupported by NNSF(10371006) |
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| 摘 要： | 研究了一类基于比率和具有时滞的非自治的捕食者食饵系统．利用重合度理论，得到了该系统周期解存在性的充分条件．
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| 关 键 词： | 捕食者 非自治 时滞 比率 周期解 重合度理论 食饵系统 充分条件 解存在性 |
| 文章编号： | 1008-374X(2005)02-0104-04 |
| 修稿时间： | 2004-10-06 |
Periodic solutions for a nonautonomous ratio-dependent P-P system with time delay |
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| GENG Li-jie,YANG Ping-hua. Periodic solutions for a nonautonomous ratio-dependent P-P system with time delay[J]. Journal of Shenyang Normal University(Natural Science Edition), 2005, 23(2): 104-107 |
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| Authors: | GENG Li-jie YANG Ping-hua |
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| Abstract: | A delayed nonautonomous ratio-dependent predator-prey system is investigated. By using the continuation theorem of coincidence degree theory, sufficient conditions are derived for the existence of periodic solution in the system. |
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| Keywords: | time delay periodic solution continuation theorem of coincidence degree |
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