论文标题
在具有不变曲线的ABEL微分方程中极限周期的上限
Upper bounds of limit cycles in Abel differential equations with invariant curves
论文作者
论文摘要
建立了针对具有两个周期性不变曲线的周期性亚伯微分方程的极限周期数的上限，建立了新标准。应用标准以获得平面微分系统的零或一个极限周期的上限。
New criteria are established for upper bounds on the number of limit cycles of periodic Abel differential equations having two periodic invariant curves, one of them bounded. The criteria are applied to obtain upper bounds of either zero or one limit cycle for planar differential systems.
