6533b820fe1ef96bd1279865

RESEARCH PRODUCT

Uniform continuity of quasiconformal mappings and conformal deformations

Tomi NieminenPekka Koskela

subject

Image domainUnit sphereEuclidean distanceQuasiconformal mappingUniform continuityExtremal lengthMetric (mathematics)Mathematical analysisConformal mapGeometry and TopologyMathematics

description

We prove that quasiconformal maps onto domains satisfying a suitable growth condition on the quasihyperbolic metric are uniformly continuous even when both domains are equipped with internal metric. The improvement over previous results is that the internal metric can be used also in the image domain. We also extend this result for conformal deformations of the euclidean metric on the unit ball of R n \mathbb {R}^n .

https://doi.org/10.1090/s1088-4173-08-00174-4