| 体内毒素浓度不相同的三维时变Volterra系统的持续生存 |
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| 引用本文： | 雒志学,王绵森,何泽荣.体内毒素浓度不相同的三维时变Volterra系统的持续生存[J].生物数学学报,2003,18(1):43-49. |
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| 作者姓名： | 雒志学 王绵森 何泽荣 |
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| 作者单位： | 西安交通大学,理学院,陕西,西安,710049 |
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| 摘 要： | 在环境容量很大且被污染的情形下，对体内毒素浓度不相同的三种群时变Volterra系统进行了研究，并给出了三维时变Volterra捕食系统弱平均持续生存与灭绝的条件。
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| 关 键 词： | 种群 绝灭 弱平均持续生存 |
| 文章编号： | 1001-9626(2003)01-0043-07 |
| 修稿时间： | 2001年9月11日 |
Persistence for the Unequal Concentration of Toxicant in the Organism Volterra Time-Varying of Three Species |
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| LUO Zhi-xue WANG Mian-sen HE Ze-rong.Persistence for the Unequal Concentration of Toxicant in the Organism Volterra Time-Varying of Three Species[J].Journal of Biomathematics,2003,18(1):43-49. |
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| Authors: | LUO Zhi-xue WANG Mian-sen HE Ze-rong |
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| Institution: | LUO Zhi-xue WANG Mian-sen HE Ze-rongDepartment of Mathematics,Xi'an Jiaotong University,Xi'an Shanxi 710049 China |
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| Abstract: | This paper studies a unequal concentration of toxicant in the organism Volterra lime-varying of three species in large capacity polluted enviroment. The sufficient conditions of persistence and extinction for each population have been obtained. |
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| Keywords: | Weak persistence Population Extinction |
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