In this paper, a non-linear parabolic partial differential equation system with non-local boundary conditions is investigated. 本文第三章讨论的是如下非局部边界条件的反应扩散系统解的存在性和唯一性。
The partial differential equation of flow in porous medium has been studied with variational finite element method. 用变分有限元方法对描述地下流体渗流的偏微分方程(PDE)进行了分析。
This paper uses the method of establishing the convex envelope, giving a proof in Partial Differential Equation(PDE). 本文利用构造凸包络的方法,给出了该定理偏微分上的证明。