Sobolev inequalities in arbitrary domains
Analysis of PDEs
2015-01-07 v1 Functional Analysis
Abstract
A theory of Sobolev inequalities in arbitrary open sets of Euclidean space is established. Boundary regularity of domains is replaced with information on boundary traces of trial functions and of their derivatives up to some explicit minimal order. The relevant Sobolev inequalities involve constants independent of the geometry of the domain, and exhibit the same critical exponents as in the classical inequalities on regular domains. Our approach relies upon new representation formulas for Sobolev functions, and on ensuing pointwise estimates which hold in any open set.
Cite
@article{arxiv.1501.01257,
title = {Sobolev inequalities in arbitrary domains},
author = {Andrea Cianchi and Vladimir Maz'ya},
journal= {arXiv preprint arXiv:1501.01257},
year = {2015}
}