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arXiv 2602.00976math.GT
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具有大特征方程的结

Knots with large character varieties

Chonnam National University(全南国立大学);Universitat Autònoma de Barcelona(巴塞罗那自治大学);Centre de Recerca Matemàtica (CRM)(数学研究中心)

Philip Choi, Joan Porti, Seokbeom Yoon

AI总结:

本文提出两种图示构造方法,用于生成具有大特征方程维度的结,并探讨了非定向3流形特征方程维度的下界。

摘要:

我们研究那些SL₂(C)-特征方程具有维度大于一的组件的结。我们称这样的结为X-大,并引入了两种图示构造,能够产生X-大的结。第一种构造使用分裂链环图和有理突变替换,为大多数在结表中观察到的X-大结提供了拓扑解释。第二种构造基于辫子和反向定向的involution,受对结10_123的详细分析的启发,也被称为Turk's head结Th(3,5)。特别是,这种方法适用于Turk's head结Th(p,q),其中p和q为奇数,导致我们推测所有此类结都是X-大的。在此过程中,我们还提出了一个非定向的Thurston定理的非定向类比,给出了非定向3流形特征方程维度的下界。

英文摘要:

We study knots whose $\mathrm{SL}_2(\mathbb{C})$-character varieties have a component of dimension greater than one. We call such knots $\mathcal{X}$-large and introduce two diagrammatic constructions that produce $\mathcal{X}$-large knots. The first construction uses split link diagrams and rational tangle replacements, providing a topological explanation for most $\mathcal{X}$-large knots observed in knot tables. The second construction is based on braids and orientation-reversing involutions, and is motivated by a detailed analysis of the knot $10_{123}$, also known as the Turk's head knot $Th(3,5)$. In particular, this approach applies to Turk's head knots $Th(p,q)$ with $p$ and $q$ odd, leading us to conjecture that all such knots are $\mathcal{X}$-large. In doing so, we also present a non-orientable analogue of Thurston's theorem giving a lower bound on the dimension of character varieties of non-orientable 3-manifolds.

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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