Conformal Transformation of Uniform Domains Under Weights That Depend on Distance to The Boundary

Abstract

The sphericalization procedure converts a Euclidean space into a compact sphere. In this note we propose a variant of this procedure for locally compact, rectifiably path-connected, non-complete, unbounded metric spaces by using conformal deformations that depend only on the distance to the boundary of the metric space. This deformation is locally bi-Lipschitz to the original domain near its boundary, but transforms the space into a bounded domain. We will show that if the original metric space is a uniform domain with respect to its completion, then the transformed space is also a uniform domain.

Keywords

• uniform domains
• conformal change in metric
• distance to the boundary
• primary: 30l05
• secondary: 30l10