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arXiv 1106.0686math.AP
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一类拟线性次扩散问题的整体强解性

Global strong solvability of a quasilinear subdiffusion problem

Rico Zacher

摘要:

证明了一类具有小于1阶分数阶时间导数的拟线性初边值问题的整体强可解性。这样的问题出现在数学物理的背景下,反常扩散和建模的动态过程中的材料与记忆。本文的证明在很大程度上依赖于作者最近证明的关于时间分数阶扩散方程弱解的内部Hölder连续性的一个正则性结果。对于外源项为零且具有齐次Dirichlet边界条件的特殊情形,我们进一步建立了一个基本的$L_2$衰减估计.

英文摘要:

We prove the global strong solvability of a quasilinear initial-boundary value problem with fractional time derivative of order less than one. Such problems arise in mathematical physics in the context of anomalous diffusion and the modelling of dynamic processes in materials with memory. The proof relies heavily on a regularity result about the interior Hölder continuity of weak solutions to time fractional diffusion equations, which has been proved recently by the author. We further establish a basic $L_2$ decay estimate for the special case with vanishing external source term and homogeneous Dirichlet boundary condition.

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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