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    Construction of nearly hyperbolic distance on punctured spheres

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    We define a distance function on the bordered punctured disk 0<∣z∣≤1/e0<|z|\le 1/e in the complex plane, which is comparable with the hyperbolic distance of the punctured unit disk 0<∣z∣<1.0<|z|<1. As an application, we will construct a distance function on an nn-times punctured sphere which is comparable with the hyperbolic distance. We also propose a comparable quantity which is not necessarily a distance function on the punctured sphere but easier to compute.Comment: 15 page
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