摘要
讨论了平面四次齐次微分系统的全局拓扑结构 。
In this paper,the global topological structures of plane homogeneous quartic differential system was disscused,and their coefficient conditions of topolpgical classifications were given.
出处
《山东师范大学学报(自然科学版)》
CAS
2003年第2期13-16,共4页
Journal of Shandong Normal University(Natural Science)