On mappings of finite distortion that are quasiconformal in the unit disk

Olli Hirviniemi; Lauri Hitruhin; István Prause; Eero Saksman

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arXiv · 2104.10961

On mappings of finite distortion that are quasiconformal in the unit disk

Olli Hirviniemi·Lauri Hitruhin·István Prause·Eero Saksman

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Abstract

We study quasiconformal mappings of the unit disk that have planar extension with controlled distortion. For these mappings we prove a bound for the modulus of continuity of the inverse map, which somewhat surprisingly is almost as good as for global quasiconformal maps. Furthermore, we give examples which improve the known bounds for the three point property of generalized quasidisks. Finally, we establish optimal regularity of such maps when the image of the unit disk has cusp type singularities.

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BibTeX RIS

Olli Hirviniemi, Lauri Hitruhin, István Prause, Eero Saksman. 2021-10-01. On mappings of finite distortion that are quasiconformal in the unit disk. https://arxiv.org/abs/2104.10961

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