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arXiv 2307.03087math.AP
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时间分数阶演化方程的Sobolev空间与迹定理

Sobolev spaces and trace theorems for time-fractional evolution equations

Doyoon Kim, Kwan Woo

AI总结:

该研究针对带Caputo分数阶导数的演化方程,在加权$L_p$空间框架下刻画适配的混合范数加权Sobolev与Besov空间,建立了迹定理与延拓定理,覆盖次扩散与超扩散情形,并给出解的初始行为的相关结论。

摘要:

我们建立了带Caputo分数阶导数的演化方程在(加权)$L_p$空间中的迹定理与延拓定理。为此,我们刻画了带混合范数的加权Sobolev空间与Besov空间,这类空间能很好地适配含时间分数阶导数方程的解空间及其初值。我们的分析涵盖时间分数阶次扩散与超扩散方程,还对时间分数阶方程解的初始行为给出了相关结论。

英文摘要:

We establish trace and extension theorems for evolutionary equations with the Caputo fractional derivatives in (weighted) $L_p$ spaces. To achieve this, we identify weighted Sobolev and Besov spaces with mixed norms that accommodate solution spaces and their initial values well-suited for equations involving time-fractional derivatives. Our analysis encompasses both time-fractional sub-diffusion and super-diffusion equations. We also provide observations on the initial behavior of solutions to time-fractional equations.

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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