| 一类三次微分系统的极限环 |
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| 引用本文： | 岳锡亭,白萍,金鉴禄.一类三次微分系统的极限环[J].北华大学学报(自然科学版),2003,4(4):282-284. |
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| 作者姓名： | 岳锡亭 白萍 金鉴禄 |
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| 作者单位： | 长春工业大学,基础科学学院,吉林,长春,130012 |
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| 摘 要： | 给出了具有三个一阶细焦点的平面多项式系统经参数扰动后在三个焦点外围分别同时分支出极限环的例子．
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| 关 键 词： | 三次系统 细焦点 极限环 |
| 文章编号： | 1009-4822(2003)04-0282-03 |
| 修稿时间： | 2003年3月7日 |
The Limit Cycles in a Cubic Differential Systems |
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| YUE Xi-ting,BAI Ping,JIN Jian-lu.The Limit Cycles in a Cubic Differential Systems[J].Journal of Beihua University(Natural Science),2003,4(4):282-284. |
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| Authors: | YUE Xi-ting BAI Ping JIN Jian-lu |
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| Abstract: | The limit cycles in a cubic differential systems with three weak focus of order one was given, it is proved that in this situation the periphery of the three focus bifurcate out at least one limit cycles at the same time respectively. |
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| Keywords: | Cubic systems Weak focus Limit cycles |
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