摘要
讨论了多项式系统 极限环的存在性和唯一性,其中a为正的奇数,彻底解决了(1)的极限环个数和分 布问题。
in this paper, the existence and uniqueness of the limit cycle of following polynomial system are discussed with a as a positive odd number, we thus have completly solved the problem of numbers and position of limit cycle for system(1).
出处
《沈阳师范学院学报(自然科学版)》
1999年第1期1-6,共6页
Journal of Shenyang Normal University(Natural Science)
关键词
多项式系统
极限环
奇点
存在性
唯一性
Polynomial system, Limit cycle, Singular point, Line without contact.