Group invariants of links

Group invariants of links
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链接的组不变量

DOI:
10.1016/0040-9383(92)90029-h
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发表时间:
1992
期刊:
影响因子:
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通讯作者:
Masaaki Wada
Masaaki Wada
中科院分区:
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文献类型:
--
作者:
Masaaki Wada

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(X,,..X,Ixi Z(B)=xi(i=1,…,ii),其中z是辫子群B到称为Artin表示的自由群(x1,…,x,)的自同构群的同态(见9i)。通过计算机实验,我们在自由群上找到了辫子群B的其他表示,它们以同样的方式给出了链环的群不变量。我们将在本文中研究这些群不变量。在9:I.中,我们通过ARTIN Rccp说明来描述链路组。这说明了我们购买电脑的动机。Cxpcrimcnt的结果在$2中给出。WC将在以下部分分析通过该方法获得的群不变量。
(X,,.... X, IXi Z (b)= Xi (i= 1,..., II)), where z is a homomorphism of the braid group B, to the group of automorphisms of the free group (x1,.., x,) called the Artin representation (see 9 I). By a computer experiment, we have found some other representations of the braid group B,, on the free groups which, in the same way as above, give group invariants of links. We will study these group invariants in this paper. In 9: I. we describe the link group via the Artin rcprcscntation. This shows the motivation of our computer expcrimcnt. The result of the cxpcrimcnt is given in $2. WC will analyze the group invariants obtained by this method in the following sections.