| 一类非自治非线性食物链系统的持久性 |
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| 引用本文： | 沈佳. 一类非自治非线性食物链系统的持久性[J]. 闽江学院学报, 2007, 28(2): 23-27 |
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| 作者姓名： | 沈佳 |
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| 作者单位： | 福州大学数学与计算机科学学院,福建,福州,350002 |
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| 摘 要： | 首次提出一类非线性非自治三种群食物链系统,利用函数的上下平均值定义和微分方程比较原理得到保证系统持久性的充分条件.
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| 关 键 词： | 食物链 捕食 食饵 平均值 持久性 |
| 文章编号： | 1009-7821（2007）02-0023-05 |
| 收稿时间： | 2006-11-27 |
| 修稿时间： | 2006-11-27 |
Permanence of a kind of non-autonomous and nonlinear food chain system |
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| SHEN Jia. Permanence of a kind of non-autonomous and nonlinear food chain system[J]. Journal of Minjiang University, 2007, 28(2): 23-27 |
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| Authors: | SHEN Jia |
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| Affiliation: | SHEN Jia (College of Mathematics and Computer Science, Fuzhou University, Fuzhou, Fujian 350002, China) |
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| Abstract: | A kind of nonlinear and non-autonomous three-species food chain system is studied in this paper.By using the definition of the upper and lower average valus of functions and the differential comparison theorem,some sufficient conditions which guarantee the permanence of the system are obtained. |
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| Keywords: | food chain predator-prey mean value permanence |
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