节点文献
一类 (E2 )的三次曲线分界线环(英文)
On the Cubic Curve Separatrix Cycles for a Class of (E2)
【摘要】 得到了一类平面二次系统存在三次曲线分界线环的充分必要条件。这种类型的分界线环的方程为y2 (x +a) +x2 (x - b) =0 (a >0 ,b >0 )。
【Abstract】 A necessary and sufficient condition for the existence of a type of cubic curve separatrix cycles in quadratic system is obtained.The equation of this type of separatrix cycles is y 2(x+a)+x 2(x-b)=0 (a>0,b>0)
【关键词】 quadratic system;
cubic curve;
separatrix cycle;
【Key words】 quadratic system; cubic curve; separatrix cycle;
【Key words】 quadratic system; cubic curve; separatrix cycle;
【基金】 Foundation item:Projectis supported by N orthwestern Institute of Architectural Engineering N SF
- 【文献出处】 工程数学学报 ,CHINESE JOURNAL OF ENGINEERING MATHEMATICS , 编辑部邮箱 ,2000年S1期
- 【分类号】O153.3
- 【下载频次】22