English

Removable sets for pseudoconvexity for weakly smooth boundaries

Complex Variables 2025-10-22 v4 Analysis of PDEs

Abstract

We show that for bounded domains in Cn\mathbb C^n with C1,1\mathcal C^{1,1} smooth boundary, if there is a closed set FF of 2n12n-1-Lebesgue measure 00 such that ΩF\partial \Omega \setminus F is C2\mathcal C^{2}-smooth and locally pseudoconvex at every point, then Ω\Omega is globally pseudoconvex. Unlike in the globally C2\mathcal C^{2}-smooth case, the condition ``FF of (relative) empty interior'' is not enough to obtain such a result. We also give some results under peak-set type hypotheses, which in particular provide a new proof of an old result of Grauert and Remmert about removable sets for pseudoconvexity under minimal hypotheses of boundary regularity.

Keywords

Cite

@article{arxiv.2504.20817,
  title  = {Removable sets for pseudoconvexity for weakly smooth boundaries},
  author = {Quang Dieu Nguyen and Pascal J. Thomas},
  journal= {arXiv preprint arXiv:2504.20817},
  year   = {2025}
}

Comments

Many typos corrected with the help of the anonymous referee; to appear in Math. Zeitschrift

R2 v1 2026-06-28T23:15:28.595Z