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Uniformization of two-dimensional metric surfaces

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Rajala, K. (2017). Uniformization of two-dimensional metric surfaces. Inventiones mathematicae, 207(3), 1301-1375. https://doi.org/10.1007/s00222-016-0686-0
Published in
Inventiones mathematicae
Authors
Rajala, Kai
Date
2017
Discipline
MatematiikkaMathematics
Copyright
© Springer-Verlag Berlin Heidelberg 2016. This is a final draft version of an article whose final and definitive form has been published by Springer. Published in this repository with the kind permission of the publisher.

 
We establish uniformization results for metric spaces that are homeomorphic to the Euclidean plane or sphere and have locally finite Hausdorff 2-measure. Applying the geometric definition of quasiconformality, we give a necessary and sufficient condition for such spaces to be QC equivalent to the Euclidean plane, disk, or sphere. Moreover, we show that if such a QC parametrization exists, then the dilatation can be bounded by 2. As an application, we show that the Euclidean upper bound for measures of balls is a sufficient condition for the existence of a 2-QC parametrization. This result gives a new approach to the Bonk-Kleiner theorem on parametrizations of Ahlfors 2-regular spheres by quasisymmetric maps.
Publisher
Springer
ISSN Search the Publication Forum
0020-9910
Keywords
metric surfaces
DOI
https://doi.org/10.1007/s00222-016-0686-0
URI

http://urn.fi/URN:NBN:fi:jyu-201702141437

Publication in research information system

https://converis.jyu.fi/converis/portal/detail/Publication/26186503

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