中文

$C^1$ 区域及小常数 Lipschitz 区域边界处调和函数的唯一延拓

偏微分方程分析 2021-05-12 v6 经典分析与常微分方程

摘要

ΩRn\Omega\subset\mathbb R^nC1C^1 区域,或更一般地,为具有小局部 Lipschitz 常数的 Lipschitz 区域。本文证明:若 uu 是在 Ω\Omega 中调和且在 Ω\overline \Omega 中连续的函数,其在相对开子集 ΣΩ\Sigma\subset\partial\Omega 上消失,且法向导数 νu\partial_\nu uΣ\Sigma 中具有正表面积测度的子集上消失,则 uu 恒为 00

关键词

引用

@article{arxiv.2004.10721,
  title  = {Unique continuation at the boundary for harmonic functions in $C^1$ domains and Lipschitz domains with small constant},
  author = {Xavier Tolsa},
  journal= {arXiv preprint arXiv:2004.10721},
  year   = {2021}
}

备注

More detailed explanation in some argument involving integration by parts and in Remark 3.3. An additional appendix with a self-contained proof of Lemma 4.3, whose proof was not included in the paper previously