Rocky Mountain Journal of Mathematics

Blaschke's rolling ball property and conformal metric ratios

David A. Herron and Poranee K. Julian

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We characterize the closed sets in Euclidean space that satisfy a two-sided rolling ball property. As an application we show that certain conformal metric ratios have boundary value~1.

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Rocky Mountain J. Math., Volume 47, Number 1 (2017), 161-184.

First available in Project Euclid: 3 March 2017

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Zentralblatt MATH identifier

Primary: 30C65: Quasiconformal mappings in $R^n$ , other generalizations
Secondary: 26B10: Implicit function theorems, Jacobians, transformations with several variables 28A78: Hausdorff and packing measures

Blashke's rolling theorems conformal metrics


Herron, David A.; Julian, Poranee K. Blaschke's rolling ball property and conformal metric ratios. Rocky Mountain J. Math. 47 (2017), no. 1, 161--184. doi:10.1216/RMJ-2017-47-1-161.

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