Non-integer characterizing slopes for torus knots

Non-integer characterizing slopes for torus knots
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环面结的非整数特征斜率

DOI:
10.4310/cag.2020.v28.n7.a5
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发表时间:
2016
影响因子:
0.7
通讯作者:
D. McCoy
D. McCoy
中科院分区:
数学3区
文献类型:
--
作者:
D. McCoy

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如果$K$上的$p/q$ -surgery的定向同态类型唯一地决定了$K$,则斜率$p/q$是$S^3$中节点$K$的特征斜率。我们证明了对于每一个环面结点,它的特征斜率集包含除了有限个以外的所有非整数斜率。这概括了Ni和Zhang的工作,他们为$T_{5,2}$建立了这样的结果。在此过程中,我们证明了如果$S^3$中的两个结点$K$和$K'$具有同态的$p/q$ -算子,那么对于$q\geq 3$和$p$足够大,我们可以得出$K$和$K'$具有相同的属和亚历山大多项式的结论。这是通过考虑heegard花同源性的绝对分级来实现的。
A slope $p/q$ is a characterizing slope for a knot $K$ in $S^3$ if the oriented homeomorphism type of $p/q$-surgery on $K$ determines $K$ uniquely. We show that for each torus knot its set of characterizing slopes contains all but finitely many non-integer slopes. This generalizes work of Ni and Zhang who established such a result for $T_{5,2}$. Along the way we show that if two knots $K$ and $K'$ in $S^3$ have homeomorphic $p/q$-surgeries, then for $q\geq 3$ and $p$ sufficiently large we can conclude that $K$ and $K'$ have the same genera and Alexander polynomials. This is achieved by consideration of the absolute grading on Heegaard Floer homology.
结补体的弗洛尔同源性
DOI: --
发表时间: 2018
期刊:
影响因子: --
作者:
白川美弥子;矢津剛;沖永美幸;藤春千恵美;佐伯由美;神山芳美;鎌田彩希;田口敦子;菅野雄介;深堀浩樹;宮下光令;Youngjin Bae;Youngjin Bae;Youngjin Bae;Yeongjin Bae (Youngjin Bae);Yeongjin Bae (Youngjin Bae)
通讯作者: Yeongjin Bae (Youngjin Bae)
卫星结纤维什么时候打
DOI: --
发表时间: 2008
期刊: Hiroshima Mathematical Journal 38
影响因子: --
作者:
M. Hirasawa;K. Murasugi & D. Silver
通讯作者: K. Murasugi & D. Silver