Abstract
We show that in a metric space $X$ with annular convexity, uniform domains are precisely those Gromov hyperbolic domains whose quasiconformal structure on the Gromov boundary agrees with that on the boundary in $X$. As an application, we show that quasimöbius maps between geodesic spaces with annular convexity preserve uniform domains. These results are quantitative.
Citation
David Herron. Nageswari Shanmugalingam. Xiangdong Xie. "Uniformity from Gromov hyperbolicity." Illinois J. Math. 52 (4) 1065 - 1109, Winter 2008. https://doi.org/10.1215/ijm/1258554351
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