| 一类n+2次生态系统的极限环 |
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| 引用本文： | 董锦华.一类n+2次生态系统的极限环[J].桂林师范高等专科学校学报,2006,20(2):146-149. |
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| 作者姓名： | 董锦华 |
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| 作者单位： | 桂林航天工业高等专科学校,计算机系,广西,桂林,541004 |
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| 摘 要： | 本文研究一类n 2次生态系统:dx/dt=x(a0 a1x-a2x2-a3yn-a4xyn)-H0,dy/dt=y(bx2-d).利用常微分方程定性理论进行分析,得到了该系统极限环存在与不存在的充分条件.
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| 关 键 词： | 生态系统 极限环 Hopf分支 |
| 文章编号： | 1001-7070（2006）02-0146-04 |
| 收稿时间： | 2006-03-20 |
| 修稿时间： | 2006-03-20 |
Limit Cycle of a Class of n+2-degree Ecosystem |
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| Dong Jinhua.Limit Cycle of a Class of n+2-degree Ecosystem[J].Journal of Guilin College of Education,2006,20(2):146-149. |
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| Authors: | Dong Jinhua |
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| Institution: | Department of Computer, Guilin College of Aerospace Technology, Guilin 541004, China |
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| Abstract: | A class of n+2-degree Ecosystem dxdt=x(a_0+a_1x-a_2x~2-a_3y~n-a_4xy~n)-H_0,dydt=y(bx~2-d).Is studied in this paper.The sufficient conditions of nonexistence and existence of limit cycle of the system are abtained. |
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| Keywords: | Ecosystem Limit cycle Hopf bifurcation |
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