arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1002.1803math.GT
收藏

Milnor不变量与HOMFLYPT多项式

Milnor invariants and the HOMFLYPT polynomial

Jean-Baptiste Meilhan, Akira Yasuhara

摘要:

我们给出的公式表示Milnor不变量的一个n-分量链接L在3-球面的HOMFLYPT多项式如下。如果对于任意长度不超过k的序列J,Milnor不变量\bar μ_J(L)为零,则任意长度在3和2k+1之间的Milnor \bar μ-不变量\bar μ_I(L)可以表示为通过某些带和运算从链路获得的节点的HOMFLYPT多项式的组合。特别地,“第一非零”Milnor不变量总是可以表示为这样的线性组合。

英文摘要:

We give formulas expressing Milnor invariants of an n-component link L in the 3-sphere in terms of the HOMFLYPT polynomial as follows. If the Milnor invariant \barμ_J(L) vanishes for any sequence J with length at most k, then any Milnor \barμ-invariant \barμ_I(L) with length between 3 and 2k+1 can be represented as a combination of HOMFLYPT polynomial of knots obtained from the link by certain band sum operations. In particular, the `first non vanishing' Milnor invariants can be always represented as such a linear combination.

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。

↑