A notion of renormahzed solution of the study of a general conservation law.

PATRICK URRUTY

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In this paper, we obtain some existence theorems of nonnegative solutions with compact support for homogeneous Dirichlet elliptic problems; we also extend these results to parabolis systems. Supersolution and comparison principles are our main ingredients.

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Existence and uniqueness of solutions for a degenerate quasilinear parabolic problem.

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