Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4618983 | Journal of Mathematical Analysis and Applications | 2010 | 9 Pages |
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.
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