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arXiv 2412.19600math.AP
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具VMO系数的时间分数阶抛物方程的加权估计

Weighted estimates for time-fractional parabolic equations with VMO coefficients

Jia Wei He, Lu Lu Tao

AI总结:

本文研究了具VMO系数的时间分数阶抛物方程在全空间和半空间中的加权估计与可解性,通过奇偶延拓及边界条件推导半空间结果,证明依赖于Fefferman-Stein定理与Hardy-Littlewood极大函数定理。

摘要:

本文致力于研究时间分数阶抛物方程的加权估计与可解性。在全空间中,无论非散度形式还是散度形式,均假设主系数\(a^{ij}(t,x)\)在\((t,x)\)处局部具有微小平均振荡。通过采用适当的奇延拓与偶延拓及合适的边界值条件,我们推导了半空间情形的相应结果。证明依赖于在加权混合空间背景下应用Fefferman-Stein定理与Hardy-Littlewood极大函数定理。

英文摘要:

This paper is devoted to the weighted estimates and the solvability of time-fractional parabolic equations. The leading coefficients \(a^{ij}(t,x)\) are assumed to have small mean oscillations in \((t,x)\) locally, in both non-divergence and divergence forms, in the whole space. By employing appropriate odd and even extensions along with suitable boundary value conditions, we derive the corresponding results for the half-space. The proofs rely on the application of the Fefferman-Stein theorem and the Hardy-Littlewood maximal function theorem in the context of weighted mixed spaces.

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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