摘要
本文对一阶微分方程的周期边值问题,在较弱条件下,建立两个上下解比较定理,并构造出解的上下单调逼近序列。所得定理1推广了[1]中定理1.1.7。
In this paper,the author gives two Comparison theorem of upper-lower solution for period- ic boundary value problems of first order differential equation under weaker Condition,which generalizes the theorem 1.1.7 of the references[1]
关键词
微分方程
边值问题
周期边值问题
First order differential equations
Boundary Value problems
Comparision theorems
