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arXiv 2104.08150math.GT
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纽结连通和的伴随Reidemeister挠率

The adjoint Reidemeister torsion for the connected sum of knots

Joan Porti, Seokbeom Yoon

AI总结:

该研究针对纽结连通和的高维$\mathrm{SL}_2(\mathbb{C})$特征簇分支,给出伴随Reidemeister挠率的自然定义,证明其在子午线迹常值子集上局部常值,且连通和的挠率零化恒等式可由各分支纽结的该性质继承。

摘要:

设$K$是纽结$K_1,\ldots,K_n$的连通和。已知由于连通和存在所谓的弯曲(bending),$K$的纽结补空间的$\mathrm{SL}_2(\mathbb{C})$特征簇包含一个维数$\geq 2$的分支。我们证明了可以自然地为这类高维分支定义伴随Reidemeister挠率,并证明它在特征簇的子午线迹为常数的子集上是局部常值的。我们还证明,若每个$K_i$的伴随Reidemeister挠率满足零化恒等式,则$K$的伴随Reidemeister挠率也满足该恒等式。

英文摘要:

Let $K$ be the connected sum of knots $K_1,\ldots,K_n$. It is known that the $\mathrm{SL}_2(\mathbb{C})$-character variety of the knot exterior of $K$ has a component of dimension $\geq 2$ as the connected sum admits a so-called bending. We show that there is a natural way to define the adjoint Reidemeister torsion for such a high-dimensional component and prove that it is locally constant on a subset of the character variety where the trace of a meridian is constant. We also prove that the adjoint Reidemeister torsion of $K$ satisfies the vanishing identity if each $K_i$ does so.

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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