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arXiv 1402.1679math.AP
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通量饱和机制的定性行为:行波、等待时间和平滑效应

Qualitative behavior for flux-saturated mechanisms: Traveling waves, waiting time and smoothing effects

Juan Calvo, Juan Campos, Vicent Caselles, Oscar Sánchez, Juan Soler

摘要:

本文研究一维通量饱和型算子的定性性质。具体而言,我们研究的正则性和平滑效果,不连续的接口,行波轮廓的存在性,子和超级解决方案和等待时间功能。本文的目的是更好地理解这类现象通过两个原型运营商:相对论热方程和多孔介质通量限制方程。作为我们结果的一个重要结果,我们推导出一维相对论性热方程的解在长时间内在其支撑点内变得光滑。

英文摘要:

This paper is devoted to the analysis of qualitative properties of flux-saturated type operators in dimension one. Specifically, we study regularity properties and smoothing effects, discontinuous interfaces, the existence of traveling wave profiles, sub- and super-solutions and waiting time features. The aim of the paper is to better understand these kind of phenomena throughout two prototypic operators: The relativistic heat equation and the porous media flux-limited equation. As an important consequence of our results we deduce that solutions to the one-dimensional relativistic heat equation become smooth inside their support on the long time run.

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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