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arXiv 0810.4620math.GR
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群的非交换张量平方的一些结构结果

Some structural results on the non-abelian tensor square of groups

Russell D. Blyth, Francesco Fumagalli, Marta Morigi

摘要:

本文研究了群G的非交换张量平方$G\otimes G$,G是模其导子群生成的群。特别地,我们找到了G/G'上的条件,使得$G\otimes G$同构于$\nabla(G)$和非阿贝尔外平方$G\wedge G$的直积.对于任意群G,我们用G的一个表示刻画了非交换外方$G\wedge G$.最后,我们将所得结果应用到一些群类,如有限秩的自由可解群和自由幂零群,以及有限p-群.

英文摘要:

We study the non-abelian tensor square $G\otimes G$ for the class of groups G that are finitely generated modulo their derived subgroup. In particular, we find conditions on G/G' so that $G\otimes G$ is isomorphic to the direct product of $\nabla(G)$ and the non-abelian exterior square $G\wedge G$. For any group G, we characterize the non-abelian exterior square $G\wedge G$ in terms of a presentation of G. Finally, we apply our results to some classes of groups, such as the classes of free soluble and free nilpotent groups of finite rank, and some classes of finite p-groups.

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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