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arXiv 2103.16167math.GT
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连接图上的积分区域选择问题

Integral region choice problems on link diagrams

Tomomi Kawamura

摘要:

Shimizu为节点图引入了一个区域交叉变化解结操作。作为推广,Ahara和Suzuki以及Harada提出了两个积分区域选择问题,并证明了对于所有非平凡纽结图,这两个问题解的存在性。我们涉及两个积分区域的选择问题与亚历山大编号的区域的链接图,并给出其他证据的存在性的解决方案的结图。我们还讨论了关于链接图的问题。对于二分量链路图上的每一个问题,我们都给出了有解的充要条件。

英文摘要:

Shimizu introduced a region crossing change unknotting operation for knot diagrams. As extensions, two integral region choice problems were proposed and the existences of solutions of the problems were shown for all non-trivial knot diagrams by Ahara and Suzuki, and Harada. We relate both integral region choice problems with an Alexander numbering for regions of a link diagram, and give alternative proofs of the existences of solutions for knot diagrams. We also discuss the problems on link diagrams. For each of the problems on the diagram of a two-component link, we give a necessary and sufficient condition that there exists a solution.

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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