| 环境污染中三维Volterra系统持续生存与绝灭的阈值 |
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| 引用本文： | 靳祯.环境污染中三维Volterra系统持续生存与绝灭的阈值[J].系统科学与数学,1998,18(3):366-370. |
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| 作者姓名： | 靳祯 |
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| 作者单位： | 华北工学院理学系!太原，030051，西安交通大学数学系!西安，710049 |
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| 摘 要： | 本文对环境容量很大且被污染的三种群系统进行了研究，得到了三维Volterra捕食-被捕食系统持续生存与绝灭的阈值．
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| 关 键 词： | 弱平均持续生存 绝灭 环境污染 |
THE THRESHOLDS OF PERSISTENCE AND EXTINCTION FOR SYSTEM OF THREE SPECIES VOLTERRA IN A POLLUTED ENVIRONMENT |
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| Jin Zhen.THE THRESHOLDS OF PERSISTENCE AND EXTINCTION FOR SYSTEM OF THREE SPECIES VOLTERRA IN A POLLUTED ENVIRONMENT[J].Journal of Systems Science and Mathematical Sciences,1998,18(3):366-370. |
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| Authors: | Jin Zhen |
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| Institution: | (Department of Mathematics, North China Institute of Technology, Taiyuan 030051)Ma Zhien(Department of Mathematics, Xi'an Jiaotong University, Xi'an 710049) |
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| Abstract: | This paper studies a three-dimensional volterra system in a large capacitypolluted environment. We give the thresholds between survival and extinction of everypopulations of a three-dimensional Lotke--Volterra prey-predator system. |
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| Keywords: | Weak persistence extinction polluted environment |
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