Título:
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On a nonlinear degenerate parabolic equation in infiltration or evaporation through a porous medium
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Autores:
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Díaz Díaz, Jesús Ildefonso ;
Kersner, R.
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier, 1987
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/restrictedAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Matemáticas: Geometría diferencial
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Tipo = Artículo
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Resumen:
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The main result of the paper is the uniqueness of nonnegative solutions of the Cauchy problem and of the first and mixed boundary value problems for a class of degenerate parabolic equations which includes the model equation ut=(um)xx+(un)x, where m?1 and n>0. In particular, n is allowed to be smaller than one. The proof is based on a refined test function argument. The condition that u be nonnegative is crucial, but the restriction to one space variable is not.
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En línea:
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https://eprints.ucm.es/id/eprint/16390/1/127.pdf
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