| 带扩散项捕食差分系统的周期解 |
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| 引用本文： | 李志祥,刘易成.带扩散项捕食差分系统的周期解[J].应用数学,2004,17(1):88-94. |
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| 作者姓名： | 李志祥 刘易成 |
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| 作者单位： | 国防科技大学理学院数学与系统科学系,湖南,长沙,410073 |
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| 摘 要： | 本文给出了带扩散项捕食系统的离散模拟 ,利用一致拓扑度理论获得了离散模型正概周期解的存在性结论 ,改进了一些条件 .这体现了我们采用的离散模拟继承了连续系统的一些动力学性质
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| 关 键 词： | 捕食系统 差分系统 周期解 |
Periodic Solution for Predator-prey Difference System with Diffusion |
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| Abstract.Periodic Solution for Predator-prey Difference System with Diffusion[J].Mathematica Applicata,2004,17(1):88-94. |
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| Authors: | Abstract |
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| Abstract: | In this paper,we give a discrete analogue of a Predatorprey system with diffusion,and under some modified conditions for this discrete model,we derived the existence of positive periodic solution by using the continuation theorem of coincidence degree theory.This shows that the discrete analogue inherits some of the dynamical characteristics of the continuous system. |
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| Keywords: | Predatorprey system Difference equation Periodic solution |
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