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arXiv 1012.2780math.GT
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树同调与Levine猜想

Tree homology and a conjecture of Levine

James Conant, Rob Schneiderman, Peter Teichner

摘要:

在他对同调柱面群的研究中,J. Levine提出了一个猜想,即某个同态η ':T -> D'是同构。这里T是标号定向树上的阿贝尔群,D'是拟李代数上括号映射的核. T和D'都与各种拓扑设置有很强的联系,包括映射类群、同调柱面、有限型不变量、惠特尼塔相交理论和自由群的自同构自同构群的同调。本文证实了Levine的猜想。正如本系列的其他论文中所解释的那样,这是将链接结构分类到grope和Whitney tower一致性的核心步骤。我们还证实和改进了Levine关于同调圆柱群的两个滤子之间的关系。

英文摘要:

In his study of the group of homology cylinders, J. Levine made the conjecture that a certain homomorphism eta': T -> D' is an isomorphism. Here T is an abelian group on labeled oriented trees, and D' is the kernel of a bracketing map on a quasi-Lie algebra. Both T and D' have strong connections to a variety of topological settings, including the mapping class group, homology cylinders, finite type invariants, Whitney tower intersection theory, and the homology of the group of automorphisms of the free group. In this paper, we confirm Levine's conjecture. This is a central step in classifying the structure of links up to grope and Whitney tower concordance, as explained in other papers of this series. We also confirm and improve upon Levine's conjectured relation between two filtrations of the group of homology cylinders.

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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