| 双营养物无搅拌chemostat模型正周期解存在性 |
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| 引用本文： | 王利娟,姜洪领,李海侠.双营养物无搅拌chemostat模型正周期解存在性[J].宝鸡文理学院学报(自然科学版),2008,28(1):25-27. |
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| 作者姓名： | 王利娟 姜洪领 李海侠 |
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| 作者单位： | 宝鸡文理学院,数学系,陕西,宝鸡,721013 |
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| 基金项目： | 宝鸡文理学院重点资助项目(zk0691) |
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| 摘 要： | 目的讨论双营养物的无搅拌chemostat模型正周期解的存在性。方法应用极值原理、上下解方法进行研究。结果得到了正周期解存在的充分条件。结论微生物对营养物的吸收率适当大时系统正周期解存在。
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| 关 键 词： | chemostat 上下解方法 周期解 |
| 文章编号： | 1007-1261(2008)01-0025-03 |
| 修稿时间： | 2007年11月28 |
The existence of positive periodic solution for the unstirred chemostat model with two nutrients |
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| WANG Li-juan,JIANG Hong-ling,LI Hai-xia.The existence of positive periodic solution for the unstirred chemostat model with two nutrients[J].Journal of Baoji College of Arts and Science(Natural Science Edition),2008,28(1):25-27. |
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| Authors: | WANG Li-juan JIANG Hong-ling LI Hai-xia |
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| Institution: | (Department of Mathematics,Baoji University of Arts and Sciences,Baoji 721013,Shaanxi,China) |
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| Abstract: | Aim The existence of positive periodic solution for the unstirred chemostat model with two nutrients is discussed.Methods The maximum principle and the monotone method are used.Results A sufficient condition for the existence of positive periodic solution is gained.Conclusion Positive periodic solution exists when the rates that microorganisms take nutrients are large enough. |
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| Keywords: | chemostat monotone method periodic solution |
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