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arXiv · 1803.10756

Improved H\"older Continuity of Quasiconformal Maps

Rosemarie Bongers
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Abstract

Quasiconformal maps in the complex plane are homeomorphisms that satisfy certain geometric distortion inequalities; infinitesimally, they map circles to ellipses with bounded eccentricity. The local distortion properties of these maps give rise to a certain degree of global regularity and H\"older continuity. In this paper, we give improved lower bounds for the H\"older continuity of these maps; the analysis is based on combining the isoperimetric inequality with a study of the length of quasicircles. Furthermore, the extremizers for H\"older continuity are characterized, and some applications are given to solutions to elliptic partial differential equations.

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BibTeXRIS

Rosemarie Bongers. 2018-03-28. Improved H\"older Continuity of Quasiconformal Maps. https://doi.org/10.5186/aasfm.2019.4465

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