6533b85ffe1ef96bd12c1a19

RESEARCH PRODUCT

Quasihyperbolic boundary conditions and capacity: Uniform continuity of quasiconformal mappings

Pekka KoskelaStanislav Hencl

subject

Uniform continuityPartial differential equationMathematics::Complex VariablesGeneral MathematicsMathematical analysisMetric (mathematics)Mathematics::Metric GeometryBoundary value problemAnalysisModulus of continuityDomain (mathematical analysis)Mathematics

description

We prove that quasiconformal maps onto domains which satisfy a suitable growth condition on the quasihyperbolic metric are uniformly continuous when the source domain is equipped with the internal metric. The obtained modulus of continuity and the growth assumption on the quasihyperbolic metric are shown to be essentially sharp. As a tool, we prove a new capacity estimate.

https://doi.org/10.1007/bf02787823