Article ID Journal Published Year Pages File Type
4618983 Journal of Mathematical Analysis and Applications 2010 9 Pages PDF
Abstract

We study the unsaturated case of the Richards equation in three space dimensions with Dirichlet boundary data. We first establish an a priori L∞-estimate. With its help, by means of a fixed point argument we prove global in time existence of a unique weak solution in Sobolev spaces. Finally, we are able to improve the regularity of this weak solution in order to gain a strong one.

Related Topics
Physical Sciences and Engineering Mathematics Analysis