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arXiv 2203.07992math.AP
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正则性问题的Carleson扰动

Carleson Perturbations for the Regularity Problem

Zanbing Dai, Joseph Feneuil, Svitlana Mayboroda

摘要:

证明了在Carleson扰动下,$L^q(\partial Ω)$中正则性问题的可解性是稳定的.如果扰动很小,那么在同一个$L^q$中保持可解性,如果扰动很大,正则性问题在$L^{r}$中对于其他$r\in (1,\infty)$是可解的。我们延长早期的结果从凯尼格和Pipher非常一般的无界域,可能与低维边界的理论开发的盖伊大卫和最后两位作者。准确地说,我们只需要域与其Ahlfors正则边界有非切向的访问,以及边界上的梯度概念。

英文摘要:

We prove that the solvability of the regularity problem in $L^q(\partial Ω)$ is stable under Carleson perturbations. If the perturbation is small, then the solvability is preserved in the same $L^q$, and if the perturbation is large, the regularity problem is solvable in $L^{r}$ for some other $r\in (1,\infty)$. We extend an earlier result from Kenig and Pipher to very general unbounded domains, possibly with lower dimensional boundaries as in the theory developed by Guy David and the last two authors. To be precise, we only need the domain to have non-tangential access to its Ahlfors regular boundary, together with a notion of gradient on the boundary.

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