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arXiv 2110.05613math.GT
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虚拟纽结群

Virtual Knot Groups

Heather A. Dye, Aaron Kaestner

摘要:

对于纽结图$K$,经典纽结群$π_1(K)$是由经典交叉上的Wirtinger型关系确定的自由群模关系.经典的纽结群在Reidemeister移动下是不变的。在本文中,我们定义了一组商群与结图$K$。这些商群在Reidemeister移动下是不变的,并且集合包括Boden等人和Silver和Williams定义的扩展纽结群。

英文摘要:

For a knot diagram $K$, the classical knot group $π_1(K)$ is a free group modulo relations determined by Wirtinger-type relations on the classical crossings. The classical knot group is invariant under the Reidemeister moves. In this paper, we define a set of quotient groups associated to a knot diagram $K$. These quotient groups are invariant under the Reidemeister moves and the set includes the extended knot groups defined by Boden et al and Silver and Williams.

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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