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arXiv 0905.2760math.GTmath.SG
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研究均匀厚度I:Legendrian简单迭代环面结

Studying uniform thickness I: Legendrian simple iterated torus knots

Douglas J. LaFountain

摘要:

证明了一类既满足勒让德单又满足均匀厚度性质(UTP)的拓扑纽结类型在布线下是闭的。一个直接的应用是,所有以负环面结开始的迭代布线结类型都是Legendrian简单的。我们还研究,对于任意数量的迭代,迭代cablings,开始与积极的环面结,并建立这些结类型,其中许多也满足UTP的大型类的勒让德简单。在这样做,我们得到了新的必要条件的UTP和Legendrian非简单性的类迭代环面结的失败,包括结类型的具体条件。

英文摘要:

We prove that the class of topological knot types that are both Legendrian simple and satisfy the uniform thickness property (UTP) is closed under cabling. An immediate application is that all iterated cabling knot types that begin with negative torus knots are Legendrian simple. We also examine, for arbitrary numbers of iterations, iterated cablings that begin with positive torus knots, and establish the Legendrian simplicity of large classes of these knot types, many of which also satisfy the UTP. In so doing we obtain new necessary conditions for both the failure of the UTP and Legendrian non-simplicity in the class of iterated torus knots, including specific conditions on knot types.

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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