| 一类有界E_3~1系统的极限环 |
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| 引用本文： | 吴承强.一类有界E_3~1系统的极限环[J].福州大学学报(自然科学版),1993(6):15-21. |
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| 作者姓名： | 吴承强 |
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| 作者单位： | 福州大学数学系 |
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| 摘 要： | 研究只有一个有限远奇点的有界Ｅ３１系统在２个等价条件下的极限环问题，得到了系统不 存在极限环，恰有一个极限环和至少二个极限环的条件，并分析了极限环的变化情况。
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| 关 键 词： | 有界系统 有限远奇点 极限环 |
Limit Cycles of Some Bounded E_3~1 System |
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| Wu Chengqiang.Limit Cycles of Some Bounded E_3~1 System[J].Journal of Fuzhou University(Natural Science Edition),1993(6):15-21. |
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| Authors: | Wu Chengqiang |
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| Institution: | Department of Mathematics |
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| Abstract: | We study the problem of the limit cycles of bounded E31 systems with only one fi- nite critical point under two equivalent conditions. We have the conditions for the system hav- ing no limit cycle, only one limit cycle, or at least two limit cycles. And then analyse the possi- ble variation of the limit cycles, including the appearance and disappcarance of them. |
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| Keywords: | bounded system limit cycle finite critical point |
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