摘要
利用奇点和有限集的特征 ,给出了首次积分存在的某些条件 .首次积分可用来判别奇点 .在各种奇点分布的情况下 。
Some conditions on the existence of the first integral are given via the properties of equilibria and limit sets.The first integral can be applied to classify equilibria.Under the configuration of equilibria,the existence of the nontrivial limit sets and the asymptotic compound trajectories or cycles has been shown.The vector field homoemorphism plays a great important role in proofs.
出处
《商丘师范学院学报》
CAS
2001年第2期49-52,共4页
Journal of Shangqiu Normal University
基金
国家教育部科研资助项目! (上大科 430 )
