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arXiv 2512.24136math.GTmath.GRmath.MG
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通过稳定立方区间将映射类群和Teichmüller空间相结合

Bicombing the mapping class group and Teichmüller space via stable cubical intervals

CUNY Hunter College(纽约市立大学亨特学院)

Matthew Gentry Durham

AI总结:

本文通过稳定立方区间方法,证明了映射类群和Teichmüller空间具有bicombing,并展示了分层超几何空间中点对的分层包络与有限CAT(0)立方复形的等距关系。

摘要:

在本文中,我们提供了一个新的关于与Minsky和Sisto共同证明的映射类群和Teichmüller空间具有bicombing的证明。更一般地说,我们解释了在任何可着色的分层超几何空间中,一对点的分层包络在Gromov-Hausdorff意义上等距于一个有限的CAT(0)立方复形,其维度有界,且扰动点对会导致立方结构的均匀有界变化。我们的方法在许多方面都得到了简化和创新。

英文摘要:

In this mostly expository article, we provide a new account of our proof with Minsky and Sisto that mapping class groups and Teichmüller spaces admit bicombings. More generally, we explain how the hierarchical hull of a pair of points in any colorable hierarchically hyperbolic space is quasi-isometric to a finite CAT(0) cube complex of bounded dimension, with the added property that perturbing the pair of points results in a uniformly bounded change to the cubical structure. Our approach is simplified and new in many aspects.

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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