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arXiv 0811.1330math.ATmath.GT
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自由群的几乎-直积的上同调环

Cohomology rings of almost-direct products of free groups

Daniel C. Cohen

摘要:

自由群的几乎直积是群生成的自由群的迭代半直积,其中组成自由群对彼此同调的作用是平凡的。确定了这类群的上同调环的结构。这是用来分析相关的Eilenberg-Mac Lane空间的拓扑复杂性。

英文摘要:

An almost-direct product of free groups is an iterated semidirect product of finitely generated free groups in which the action of the constituent free groups on the homology of one another is trivial. We determine the structure of the cohomology ring of such a group. This is used to analyze the topological complexity of the associated Eilenberg-Mac Lane space.

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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