一阶非线性常微分方程解的存在唯一性

The Existence and Uniqueness of Solutions for One Order Non-linear Ordinary Differential Equations

文章利用Banach不动点定理证明了一阶非线性常微分方程解的存在唯一性。在非线性项为无界的情况下得到了新的解的存在唯一性条件,弱化了Lipschitz条件和偏导连续性条件,为研究微分方程解的存在唯一性方面提供了新的思路和方法。

In this paper some new existence and uniqueness theorems for One Order Nonlinear Ordinary Differ-ential Equations are obtained by the Banach fixed point theorem. In the case that nonlinear term is unbounded, the paper gives new weaker condition than Liqschitz and continuous partial derivative condition, provide some new methods and conditions for existence and uniqueness of Ordinary Differential Equations.