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arXiv 2308.09800math.MG
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在满足 p-Poincaré 不等式的双重度量空间中,关于域的可见边界痕迹的研究

Traces of Newton-Sobolev functions on the visible boundary of domains in doubling metric measure spaces supporting a $p$-Poincaré inequality

Sylvester Eriksson-Bique, Ryan Gibara, Riikka Korte, Nageswari Shanmugalingam

AI总结:

本文研究了在满足 p-Poincaré 不等式的双重度量空间中,域的可见边界痕迹性质,证明了边界厚度与可见边界的厚度关系,并展示了 Sobolev 函数的痕迹属于 Besov 类。

摘要:

我们考虑一个领域在所有位置和所有尺度上具有均匀厚边界时,其大部分边界是否可见的问题;这里,

英文摘要:

We consider the question of whether a domain with uniformly thick boundary at all locations and at all scales has a large portion of its boundary visible from the interior; here, "visibility" indicates the existence of John curves connecting the interior point to the points on the "visible boundary". In this paper, we provide an affirmative answer in the setting of a doubling metric measure space supporting a $p$-Poincaré inequality for $1<p<\infty$, thus extending the results of [20,2,9] to non-Ahlfors regular spaces. We show that $t$-codimensional thickness of the boundary for $0<t<p$ implies $p$-codimensional thickness of the visible boundary. For such domains we prove that traces of Sobolev functions on the domain belong to the Besov class of the visible boundary.

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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