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author:

谢向东 (谢向东.) [1] | 陈凤德 (陈凤德.) [2] (Scholars:陈凤德)

Indexed by:

CQVIP PKU CSCD

Abstract:

给出二次系统Ⅰ的一类相伴系统在奇点O(0,0)的焦点量公式,证明了O至多为2阶细焦点,δlmn=0时系统在O外围至多有一个极限环,从而说明了系统在细焦点外围至多有一个极限环.最后给出了各个奇点的分支情况及几何特征.

Keyword:

三次系统 分支 唯一性 极限环 相伴系统

Community:

  • [ 1 ] [谢向东]宁德师范学院
  • [ 2 ] [陈凤德]福州大学

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Source :

系统科学与数学

ISSN: 1000-0577

CN: 11-2019/O1

Year: 2005

Issue: 4

Volume: 25

Page: 414-422

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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