| 一类二次系统存在双细鞍点的充要条件 |
| |
| 引用本文： | 宋国强,盛立人.一类二次系统存在双细鞍点的充要条件[J].安徽大学学报(自然科学版),1997,21(1):14-20. |
| |
| 作者姓名： | 宋国强 盛立人 |
| |
| 作者单位： | [1]安徽医科大学卫管学校 [2]安徽大学数学系 |
| |
| 摘 要： | 本文利用二次系统初等奇点的性质及等倾线图，给出一类二次系统存在双细鞍点的充要条件，并对某些复杂的系数条件作出数值例子
|
| 关 键 词： | 二次系统，初等奇点，等倾线图，细鞍点 |
The Necessary and Sufficient Conditions for a Kind of Quadratic Differential System to Exist two Weak Saddles |
| |
| Song,Guoqiang.The Necessary and Sufficient Conditions for a Kind of Quadratic Differential System to Exist two Weak Saddles[J].Journal of Anhui University(Natural Sciences),1997,21(1):14-20. |
| |
| Authors: | Song Guoqiang |
| |
| Institution: | Song Guoqiang (Health Administration College Anhui Medical University Hefei 230032) Sheng Liren (Department of Mathematics Anhui University Hefei 230039) |
| |
| Abstract: | In this paper, the necessary and sufficient conditions for a kind of quadratic differential system to exist two weak saddles are given by using properties of primary singular point in the quadratic differential system and its equiinclined line diagram.Then we construct some numerical examples for some complex coefficient conditions. |
| |
| Keywords: | quadratic differential system primary singular point equiinclined line diagram weak saddle |
| 本文献已被 CNKI 维普 等数据库收录！ |
