【摘要】 主要利用Ｂｒｏｕｗｅｒ不动点定理和三次代数方程存在实根的方法，得到了周期系数Ａｂｅｌ方程只存在一个或三个实周期解的充分条件．更多还原

【Abstract】 In the present paper, we investigate the Abel equation with periodic coefficients by the methods of Brouwer fixed point theory and cubic algebraic equation existing real solutions, and obtain the sufficient condition for Abel equation with periodic coefficients existing exactly one or three real periodic solutions.更多还原