具有某类双曲线解的系统E3^2＊

SYETEM E_3~2 WITH A CERTAIN-FORM HYPERBOLIC SOLUTION

讨论当系统E23 具有某类双曲线解时 ,E23 不存在双曲分界线环 ;但存在双曲分界线 ,并找出E23

In the system E 2 3 with a certain-form hyperbolic solution with center at the origin,we prove that theres no hyperbolic separatrix cycle and get the sufficient and necessary condition of the existence of the hyperbolic separatrix.