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arXiv 1805.04427math.GT
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多交叉编织

Multi-crossing Braids

Daishiro Nishida

摘要:

传统上,纽结理论家考虑的纽结的投影是两股线在每个交叉点相遇。多交叉是其中多于两条链在单个点处相遇的交叉,使得每条链平分交叉。在本文中,我们推广的想法,在传统的辫子理论的多交叉辫子。我们的主要结果是亚历山大定理的推广。我们证明了对于任何偶数$n$,每个链接都可以被放入一个$n$ -交叉辫子形式中,对于任何$n$,每个具有两个或多个组件的链接都可以被放入一个$n$ -交叉辫子形式中.我们发现之间的关系的$n$交叉辫子指数,或字符串的数量表示一个链接在一个$n$交叉辫子。

英文摘要:

Traditionally, knot theorists have considered projections of knots where there are two strands meeting at every crossing. A multi-crossing is a crossing where more than two strands meet at a single point, such that each strand bisects the crossing. In this paper we generalize ideas in traditional braid theory to multi-crossing braids. Our main result is an extension of Alexander's Theorem. We prove that every link can be put into an $n$-crossing braid form for any even $n$, and that every link with two or more components can be put into an $n$-crossing braid form for any $n$. We find relationships between the $n$-crossing braid indices, or the number of strings necessary to represent a link in an $n$-crossing braid.

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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