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arXiv 0811.3726math.GT
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嵌入空间的位形空间积分与Haefliger不变量

Configuration space integrals for embedding spaces and the Haefliger invariant

Keiichi Sakai

摘要:

设K是R^n中的长j-纽结空间。本文通过构形空间积分引入了图复形D和从D到K的de Rham复形的线性映射I,并证明了:(1)当n>j>=3都是奇数时,如果仅限于至多有一个圈分支的图,则映射I是上链映射;(2)当n-j>=2是偶数时,如果仅限于树图,则映射I是上链映射,(3)当n-j >=3为奇数时,加上修正项的映射I产生K的一个(2n-3 j-3)-上圈,它给出了当n= 6 k,j=4k-1时Haefliger不变量的一个新形式。

英文摘要:

Let K be the space of long j-knots in R^n. In this paper we introduce a graph complex D and a linear map I from D to the de Rham complex of K via configuration space integral, and prove that (1) when both n>j>=3 are odd, the map I is a cochain map if restricted to graphs with at most one loop component, (2) when n-j>=2 is even, the map I is a cochain map if restricted to tree graphs, and (3) when n-j >=3 is odd, the map I added a correction term produces a (2n-3j-3)-cocycle of K which gives a new formulation of the Haefliger invariant when n=6k, j=4k-1 for some k.

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。

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