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arXiv 0905.4661math.GT
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带边界曲面上所有简单闭测地线的缩短

Shortening all the simple closed geodesics on surfaces with boundary

Athanase Papadopoulos, Guillaume Théret

摘要:

本文证明了Thurston的一个未发表的结果:给定有限型非空边界曲面上的任一双曲度量,在同一曲面上存在另一个双曲度量,使得所有简单闭测地线的长度都较短. (This对于具有空边界的有限型曲面是不可能的。)此外,我们表明,我们可以这样做的缩短,它是由一个正常数下界。这改进了Parlier在[2]中得到的一个结果。我们把这个结果包括在具有非空边界曲面的Teichmüller空间的弱度量理论的讨论中。

英文摘要:

We give a proof of an unpublished result of Thurston showing that given any hyperbolic metric on a surface of finite type with nonempty boundary, there exists another hyperbolic metric on the same surface for which the lengths of all simple closed geodesics are shorter. (This is not possible for surfaces of finite type with empty boundary.) Furthermore, we show that we can do the shortening in such a way that it is bounded below by a positive constant. This improves a recent result obtained by Parlier in [2]. We include this result in a discussion of the weak metric theory of the Teichmüller space of surfaces with nonempty boundary.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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