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周期系统Laurent多项式型首次积分的不存在性

焦 佳1, 付苗苗2, 马 勇3   

  1. 1. 吉林大学 数学研究所, 长春 130012; 2. 长春师范学院 数学系, 长春 130032;3. 吉林大学 数学学院, 长春 130012
  • 收稿日期:2008-07-07 修回日期:1900-01-01 出版日期:2009-01-26 发布日期:2009-01-26
  • 通讯作者: 焦 佳

Nonexistence of Laurent Polynomial First Integrals for Periodic Systems

JIAO Jia1, FU Miaomiao2, MA Yong3   

  1. 1. Institute of Mathematics, Jilin University, Changchun 130012, China;2. Department of Mathematics, Changchun Normal University, Changchun 130032, China;3. College of Mathematics, Jilin University, Changchun 130012, China
  • Received:2008-07-07 Revised:1900-01-01 Online:2009-01-26 Published:2009-01-26
  • Contact: JIAO Jia

摘要: 考虑周期系统Laurent多项式型首次积分的不存在性. 利用Floquet理论, 证明了如果系统的特征乘数是Z-非共振的, 则系统在平衡点附近不存在Laurent多项式型首次积分.

关键词: Laurent多项式, 首次积分, Floquet理论

Abstract: We considered the nonexistence of Laurent polynomial first integrals for periodic system. Using the Floquet theory, we have prov ed that if the characteristic multipliers of the system are Zindependent, then the syst em does not have any nontrivial Laurent first integral in a neighborhood of a constant solution.

Key words: Laurent polynomial, first integral, Floquet theory

中图分类号: 

  • O175