arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0906.4575math.GT
收藏

塞弗特纤维或环形的多重扭结

On multiply twisted knots that are Seifert fibered or toroidal

Jessica S. Purcell

摘要:

我们考虑的结的图有大量的多股扭曲。通过用不打结的曲线环绕多股线上的扭曲,我们得到一个称为广义增广连杆的连杆。德恩填补这个环节给出了原来的结。我们对塞弗特纤维化的广义增广链路进行分类,并对环形的广义增广链路进行环面分解。特别是,我们发现,每个组件的环面分解是“平凡的”,在某种意义上说,或同胚的补充广义增广链接。我们发现,这种结构下持续高德恩填充,给出结果的环面分解的结与广义扭曲区域和大量的扭曲。作为应用,我们给出了这些纽结补和广义增广链的Gromov范数的下界。

英文摘要:

We consider knots whose diagrams have a high amount of twisting of multiple strands. By encircling twists on multiple strands with unknotted curves, we obtain a link called a generalized augmented link. Dehn filling this link gives the original knot. We classify those generalized augmented links that are Seifert fibered, and give a torus decomposition for those that are toroidal. In particular, we find that each component of the torus decomposition is either "trivial", in some sense, or homeomorphic to the complement of a generalized augmented link. We show this structure persists under high Dehn filling, giving results on the torus decomposition of knots with generalized twist regions and a high amount of twisting. As an application, we give lower bounds on the Gromov norms of these knot complements and of generalized augmented links.

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。

↑