| 一类种群动力学模型正概周期解的存在性 |
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| 引用本文： | 王晓,李志祥.一类种群动力学模型正概周期解的存在性[J].应用数学学报,2007,30(2):272-278. |
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| 作者姓名： | 王晓 李志祥 |
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| 作者单位： | 国防科技大学数学与系统科学系,长沙,410073 |
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| 摘 要： | 本文讨论了一类时滞微分方程正概周期解的存在性问题,利用锥中u_0-凹算子与增算子的性质,不仅得到了上述系统的正概周期解的存在性与非存在性的结论,还改进了现有的结果,并且我们的方法也适用于更一般的系统．
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| 关 键 词： | 正概周期解 时滞 U0-凹算子 锥 |
| 修稿时间： | 2005-09-05 |
Existence of Positive Almost Periodic Solution for a Class of Population Differential Equation with Infinite Delay |
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| WANG XIAO,LI ZHIXIANG.Existence of Positive Almost Periodic Solution for a Class of Population Differential Equation with Infinite Delay[J].Acta Mathematicae Applicatae Sinica,2007,30(2):272-278. |
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| Authors: | WANG XIAO LI ZHIXIANG |
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| Institution: | Department of Mathematics and System Science, National University of Defense Technology, Changsha 410073 |
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| Abstract: | In this paper,a class of population differential equation with infinite delay as follows is disscussed.Sufficient conditions for the existence of positive almost periodic solutions are obtained by using u_0-concave operator and increasing operator.Our results are new and some existing statements are improved. |
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| Keywords: | positive almost periodic solution delay u_0-concave operator cone |
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