arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2104.07922math.GT
收藏

关于纯装饰手术有限性的一个注记

A remark on a finiteness of purely cosmetic surgeries

Tetsuya Ito

AI总结:

本文通过Turaev亏格和交错数估计纽结Floer厚度,证明了当$g(K)\geq \frac{3}{2}b(K)$时$S^3$中纽结不接受纯装饰手术,从而确立了纯装饰手术的有限性并部分验证了装饰手术猜想。

摘要:

通过用亏格和辫指数估计Turaev亏格或交错数,进而估计纽结Floer厚度,我们证明了当$g(K)\geq \frac{3}{2}b(K)$时,$S^{3}$中的纽结$K$不接受纯装饰手术,其中$g(K)$和$b(K)$分别表示亏格和辫指数。特别地,这确立了纯装饰手术的有限性;对于固定的$b$,辫指数为$b$的所有纽结中除有限多个外均满足装饰手术猜想。

英文摘要:

By estimating the Turaev genus or the dealternation number, which leads to an estimate of knot floer thickness, in terms of the genus and the braid index, we show that a knot $K$ in $S^{3}$ does not admit purely cosmetic surgery whenever $g(K)\geq \frac{3}{2}b(K)$, where $g(K)$ and $b(K)$ denotes the genus and the braid index, respectively. In particular, this establishes a finiteness of purely cosmetic surgeries; for fixed $b$, all but finitely many knots with braid index $b$ satisfies the cosmetic surgery conjecture.

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。

↑