| 两相异斑块中扩散Lotka-Volterra树系统持续生存的判据 |
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| 引用本文： | 魏和林,吴向阳,李学志.两相异斑块中扩散Lotka-Volterra树系统持续生存的判据[J].信阳师范学院学报(自然科学版),2000,13(3):257-262. |
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| 作者姓名： | 魏和林 吴向阳 李学志 |
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| 作者单位： | 1. 信阳工业学校,河南,潢川,465150
2. 信阳师范学院,河南,信阳,464000 |
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| 基金项目： | Foundation item:Supported by the Nature Science Foundation of Henan province(9840 51 2 0 0 ) |
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| 摘 要： | 讨论了两相异斑块中n种群扩散Lotka-Volterra树系统.通过引入"种群度"的概念,给出了一组判断该系统是持续生存的、容易验证的充分条件.
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| 关 键 词： | 持续生存 扩散 Lotke-Volterra树系统 种群度 斑块环境 |
The criteria of permanence for diffusive Lotka Volterra tree systems in two heterogeneous patches |
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| Abstract.The criteria of permanence for diffusive Lotka Volterra tree systems in two heterogeneous patches[J].Journal of Xinyang Teachers College(Natural Science Edition),2000,13(3):257-262. |
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| Authors: | Abstract |
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| Abstract: | By introducing a concept, called the de gree of a species, a set of sufficient conditions for the permanence of n-species diffusive Lotka-Volterra tree systems in two heterogeneous patches is obtained. The criteria are in explicit forms of the parameters and thus are easi ly verifiable. |
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| Keywords: | permanence diffusion Lotka-Volterra tree system degree of a species patches |
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