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arXiv 1801.01784math.AP
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退化扩散系数标量方程的消失粘性极限

Vanishing Viscosity Limits of Scalar Equations with Degenerate Diffusivity

Giuseppe Coclite, Andrea Corli, Lorenzo di Ruvo

摘要:

本文考虑一个在几个空间维度上的带源项的标量、可能退化的抛物型方程。对于有界变差的初值,我们证明了初值问题解的存在性。然后证明了这些解在粘性消失极限下收敛于相应的双曲型方程的Kruzhkov熵解。证明利用了H-测度紧性在几个空间维度。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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