| 一类二次微分系统的定性分析 |
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| 引用本文： | 洪晓春.一类二次微分系统的定性分析[J].曲靖师范学院学报,2003,22(6):18-20. |
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| 作者姓名： | 洪晓春 |
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| 作者单位： | 曲靖师范学院,初等教育系,云南,曲靖,655000 |
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| 基金项目： | 云南省教育厅自然科学研究基金资助项目“近可积系统的分支研究”( 0 2ZY1 88)，曲靖师范学院立项资助课题“微分方程的相图与极限环研究”( 0 3 2 1 90 5 ) |
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| 摘 要： | By using the method of qualitative analysis, phase portraits for a class of quadratic differential systemare investigated. Nine phase portraits are found and shown for this system.
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| 关 键 词： | quadratic system singular point Poincare transformation |
Qualitative analysis of a class of quadratic differential system |
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| Abstract.Qualitative analysis of a class of quadratic differential system[J].Journal of Qujing Normal College,2003,22(6):18-20. |
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| Authors: | Abstract |
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| Abstract: | By using the method of qualitative analysis, phase portraits for a class of quadratic differential system are investigated. Nine phase portraits are found and shown for this system. |
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| Keywords: | phase portrait quadratic system singular point |
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