We investigate the existence of weak solutions for nonlinear differential equations that describe fluid flow through a porous medium. Existence is proved using the theory of monotone operators, and some examples are given.
Submitted July 18, 2006. Published December 7, 2006.
Math Subject Classifications: 35K60, 35J60.
Key Words: Flow in porous medium; nonlinear partial differential equations; monotone operators.
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| Ádám Besenyei |
Department of Applied Analysis
Eötvös Loránd University
1117-H Budapest Pázmány P. S. 1/C, Hungary
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