Smooth extensions of Sobolev boundary data in corkscrew domains with uniformly rectifiable boundaries
Classical Analysis and ODEs
2025-11-14 v1
Abstract
Given a corkscrew domain with uniformly rectifiable boundary, we construct a surjective trace map onto the Hajlasz-Sobolev space on the boundary from the space of functions on the domain with norm involving the non-tangential maximal function of the gradient and the conical square function of the Hessian. This fundametally uses the Dorronsoro theorem for UR sets proven in a companion paper.
Keywords
Cite
@article{arxiv.2511.10137,
title = {Smooth extensions of Sobolev boundary data in corkscrew domains with uniformly rectifiable boundaries},
author = {Jonas Azzam and Mihalis Mourgoglou and Michele Villa},
journal= {arXiv preprint arXiv:2511.10137},
year = {2025}
}
Comments
This articles comes from the preprint arXiv:2306.13017, which we split in two for readability's sake