| 一个生态模型周期解 |
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| 引用本文： | 张钟德.一个生态模型周期解[J].怀化师专学报,2008(2):1-6. |
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| 作者姓名： | 张钟德 |
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| 作者单位： | 湖南信息职业技术学院,湖南望城410200 |
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| 摘 要： | 采用更精确的先验估计，利用重合度理论讨论了一类与厌氧消化过程微生物生态模型有关的微分方程组，得到了该方程组存在2π周期解的充分条件，改进了相关文献中的定理．
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| 关 键 词： | 生态模型 周期解 拓扑度理论 |
Existence of Periodic Solutions to Ecological Model of Microbes |
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| Institution: | ZHANG Zhong- de ( Hunan Information College of Technology, Wangcheng, Hunan 410200) |
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| Abstract: | By means of better prior estimate and the topologial degree, the existence of periodic Solutions to a system of the differential equations related to an ecological model of microbes in anaerobic digestion process is studied, sufficient condition of the equation with periodic solutions is obtained. |
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| Keywords: | ecological model periodic solution topologial degree |
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