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An existence and uniqueness result using bounded variation estimates in Galerkin approximations

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arxiv 2312.09959 v5 pith:PTKI4OZC submitted 2023-12-15 math.AP

classification math.AP
keywords approximationsgalerkinboundedestimatesexistenceresultsolutionsuniqueness
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Bounded variation estimates of Galerkin approximations are established in order to extract an almost everywhere convergent subsequence of Galerkin approximations. As a result we prove existence of weak solutions of initial boundary value problems for quasilinear parabolic equations. Uniqueness of weak solutions is derieved applying a standard argument.

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