| 一类具有脉冲效应和可变时滞的非自治捕食者-食饵系统正周期解的存在性 |
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| 引用本文： | 王斌,刘萍. 一类具有脉冲效应和可变时滞的非自治捕食者-食饵系统正周期解的存在性[J]. 云南民族大学学报(自然科学版), 2010, 19(5). DOI: 10.3969/j.issn.1672-8513.2010.05.008 |
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| 作者姓名： | 王斌 刘萍 |
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| 作者单位： | 1. 兴义民族师范学院,数学系,贵州,兴义,562400;云南大学,数学系,云南,昆明,650091
2. 云南大学,数学系,云南,昆明,650091 |
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| 基金项目： | 云南省应用基础面上项目 |
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| 摘 要： | 通过应用迭合度理论的连续定理,获得了一类具有脉冲效应和可变时滞的非自治捕食者-食饵系统正周期解存在性的充分条件.
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| 关 键 词： | 脉冲 时滞 正周期解 迭合度理论 |
Existence of Positive Periodic Solutions for a Nonautonomous Predator-Prey System with Impulse Effects and Variable Delays |
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| WANG Bin,LIU Ping. Existence of Positive Periodic Solutions for a Nonautonomous Predator-Prey System with Impulse Effects and Variable Delays[J]. Journal of Yunnan Nationalities University:Natural Sciences Edition, 2010, 19(5). DOI: 10.3969/j.issn.1672-8513.2010.05.008 |
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| Authors: | WANG Bin LIU Ping |
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| Affiliation: | WANG Bin1,2,LIU Ping2(1.Department of Mathematics,Xingyi Normal University for Nationalities,Xingyi 562400,China,2.Department of Mathematics,Yunnan University,Kunming 650091,China) |
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| Abstract: | By using the continuation theorem of coincidence degree theory,the sufficient condition of the existence of positive periodic solutions for a nonautonomous predator-prey system with impulse effects and variable delays is obtained. |
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| Keywords: | impulse delay positive periodic solution coincidence degree theory |
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