Solving a Dirichlet problem for unbounded domains via a conformal transformation
Abstract
In this paper, we solve the -Dirichlet problem for Besov boundary data on unbounded uniform domains with bounded boundaries when the domain is equipped with a doubling measure satisfying a Poincar\'{e} inequality. This is accomplished by studying a class of transformations that have been recently shown to render the domain bounded while maintaining uniformity. These transformations conformally deform the metric and measure in a way that depends on the distance to the boundary of the domain and, for the measure, a parameter . We show that the transformed measure is doubling and the transformed domain supports a Poincar\'{e} inequality. This allows us to transfer known results for bounded uniform domains to unbounded ones, including trace results and Adams-type inequalities, culminating in a solution to the Dirichlet problem for boundary data in a Besov class.
Cite
@article{arxiv.2209.09773,
title = {Solving a Dirichlet problem for unbounded domains via a conformal transformation},
author = {Ryan Gibara and Riikka Korte and Nageswari Shanmugalingam},
journal= {arXiv preprint arXiv:2209.09773},
year = {2023}
}