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arXiv 1011.6038math.GRmath.GT
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对角复形与自由积的自同构群的积分同调

Diagonal complexes and the integral homology of the automorphism group of a free product

James Griffin

摘要:

本文的主要目的是计算一个自由积的对称自同构群的积分(上)同调。我们继续通过给出对称自同构的几何解释通过某些图的模空间,我们命名为仙人掌产品。为了描述这种模空间的理论的对角复形。这提供了直角阿廷群理论的概括,因为每个对角复形定义了我们所说的对角直角阿廷群(DRAAG)。

英文摘要:

The main goal of this paper is a calculation of the integral (co)homology of the group of symmetric automorphisms of a free product. We proceed by giving a geometric interpretation of symmetric automorphisms via a moduli space of certain diagrams, which we name cactus products. To describe this moduli space a theory of diagonal complexes is introduced. This offers a generalisation of the theory of right-angled Artin groups in that each diagonal complex defines what we call a diagonal right-angled Artin group (DRAAG).

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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