浅谈不动点原理及其应用

A Preliminary Study on the Principle and Application of Immovable Point

本文重点讲述不动点原理在证明几类微分方程和积分方程解的存在性和唯一性方面 的重要应用，以及由此产生的方法——逐次逼近法。

：This paper presents the application of the immovable point principle in proving the existence and uniqueness of the solution to some kinds of differential equation and integral equation, and the method produced by the principle —— progressive approach.