| 一类中立型时滞种群对数模型的周期解 |
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| 引用本文： | 刘心歌,唐美兰,刘心笔,李岱芳.一类中立型时滞种群对数模型的周期解[J].江西师范大学学报(自然科学版),2006,30(5):475-477. |
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| 作者姓名： | 刘心歌 唐美兰 刘心笔 李岱芳 |
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| 作者单位： | 中南大学,数学科学与计算技术学院,湖南,长沙,410083;中南大学,材料学院,湖南,长沙,410083;中南大学,商学院,湖南,长沙,410083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 基于更精确的先验估计,利用重合度理论中的连续定理,研究了一类时滞种群模型的周期解,获得了这类模型存在正周期解的充分条件,所得结果推广了李永昆文中的有关结论,并使条件有所减弱.
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| 关 键 词： | 时滞种群模型 周期正解 重合度 |
| 文章编号： | 1000-5862（2006）05-0475-03 |
| 收稿时间： | 2006-02-20 |
| 修稿时间： | 2006-02-20 |
Periodic Solution for a Class of Delay Neutral Population |
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| LIU Xin-ge,TANG Mei-lan,LIU Xin-bi,LI Dai-fang.Periodic Solution for a Class of Delay Neutral Population[J].Journal of Jiangxi Normal University (Natural Sciences Edition),2006,30(5):475-477. |
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| Authors: | LIU Xin-ge TANG Mei-lan LIU Xin-bi LI Dai-fang |
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| Institution: | 1. School of Mathematical Sciences and Computing Technology, Central South University, Changsha 410083; 2. School of Materials Science and Engineering, Central South University, Changsha 410083; 3. Business School, Central South University, Changsha 410083, China |
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| Abstract: | Basing on better prior estimate,the theory of Brouwer degree and coincidence degree,the existence of positive periodic solution for a kind of neutral population model is studied.Some sufficient conditions are obtained,which is improvement of the theorem in the paper of LI Yong-kun. |
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| Keywords: | delays neutral population model positive periodic solution topological degree |
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