摘要
本文首先建立二个微分恒等式，然后利用它们研究了二类非线性微分方程与线性微分程之间解的Ｓｔｕｒｍ比较定理。
In this paper,we establish two differential identies and there by generalize some classical Sturm Comparison theorems.
关键词
二阶非线性微分方程
微分恒等式
STURM比较定理
second order nonlinear differential equation, differential identity, Sturm comparison theorem.
