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arxiv: 1801.01784 · v1 · pith:ARILEOXXnew · submitted 2018-01-05 · 🧮 math.AP

Vanishing Viscosity Limits of Scalar Equations with Degenerate Diffusivity

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keywords degeneratedimensionsequationscalarseveralsolutionsspacebounded
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We consider a scalar, possibly degenerate parabolic equation with a source term, in several space dimensions. For initial data with bounded variation we prove the existence of solutions to the initial-value problem. Then we show that these solutions converge, in the vanishing-viscosity limit, to the Kruzhkov entropy solution of the corresponding hyperbolic equation. The proof exploits the H-measure compactness in several space dimensions.

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