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arXiv 2209.04397math.AP
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鲁棒非局部迹空间与Neumann问题

Robust nonlocal trace spaces and Neumann problems

Florian Grube, Thorben Hensiek

摘要:

证明了$s\in(0,1)$阶索伯列夫空间的迹和扩张结果.这些空间用于研究有界域上的非局部Dirichlet和Neumann问题。当$s$逼近$1$且我们的迹空间收敛于$H^{1/2}(\partial Ω)$时,迹和延拓算子的连续性是一致的.应用这些结果研究了当积分-微分算子局部化为对称二阶算子的散度型时非局部Neumann问题解的收敛性.

英文摘要:

We prove trace and extension results for fractional Sobolev spaces of order $s\in(0,1)$. These spaces are used in the study of nonlocal Dirichlet and Neumann problems on bounded domains. The results are robust in the sense that the continuity of the trace and extension operators is uniform as $s$ approaches $1$ and our trace spaces converge to $H^{1/2}(\partial Ω)$. We apply these results in order to study the convergence of solutions of nonlocal Neumann problems as the integro-differential operators localize to a symmetric, second order operator in divergence form.

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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