A surgery formula for the 2-loop piece of the LMO invariant of a pair

A surgery formula for the 2-loop piece of the LMO invariant of a pair
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一对 LMO 不变量的 2 环部分的手术公式

DOI:
10.2140/gtm.2002.4.161
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发表时间:
2002
影响因子:
0.5
通讯作者:
A. Kricker
A. Kricker
中科院分区:
数学4区
文献类型:
--
作者:
A. Kricker

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设Θ(M,K)表示结点K在M中的LMO不变量的对数的2环段,即ZHS。忘记结(这里我们指的是将脚为零的图设置为零)将Θ(M,K)专门化为λ(M),即卡森不变量。本文将Casson的手术公式推广为Θ(M,K)。准确地说,我们描述了对一个结的手术对Θ(M,K)的影响,该结与K一起形成M中的边界链接。虽然给出的公式没有描述Θ(M,K),但它确实允许对底层拓扑有一些了解。AMS分类57M27;57 m25公路
Let Θ(M,K) denote the 2-loop piece of (the logarithm of) the LMO invariant of a knot K in M , a ZHS . Forgetting the knot (by which we mean setting diagrams with legs to zero) specialises Θ(M,K) to λ(M), Casson’s invariant. This note describes an extension of Casson’s surgery formula for his invariant to Θ(M,K). To be precise, we describe the effect on Θ(M,K) of a surgery on a knot which together with K forms a boundary link in M . Whilst the presented formula does not characterise Θ(M,K), it does allow some insight into the underlying topology. AMS Classification 57M27; 57M25