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arXiv 0907.4639math.GT
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Instanton弗洛尔同调与Alexander多项式

Instanton Floer homology and the Alexander polynomial

P. B. Kronheimer, T. S. Mrowka

摘要:

三球纽结的瞬子弗洛尔同调是一个模2正则分次的向量空间。它带有一个著名的自同态的甚至程度,产生于2维同调类所代表的塞弗特表面。弗洛尔同调分解为这个自同态的广义本征空间的直和。我们证明了这些广义本征空间的欧拉示性数是纽结的Alexander多项式的系数。在其他应用中,我们推断,瞬子同源检测纤维结。

英文摘要:

The instanton Floer homology of a knot in the three-sphere is a vector space with a canonical mod 2 grading. It carries a distinguished endomorphism of even degree,arising from the 2-dimensional homology class represented by a Seifert surface. The Floer homology decomposes as a direct sum of the generalized eigenspaces of this endomorphism. We show that the Euler characteristics of these generalized eigenspaces are the coefficients of the Alexander polynomial of the knot. Among other applications, we deduce that instanton homology detects fibered knots.

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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