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arXiv 0910.4789math.GR
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关于直角Artin群的自同构群的可解子群

On solvable subgroups of automorphism groups of right-angled Artin groups

Matthew B. Day

摘要:

对任意直角Artin群,我们证明了它的外自同构群包含有限指数幂零子群或非交换自由子群。这是一个弱山雀择一定理。我们找到一个标准的定义图,确定哪种情况下举行。我们还考虑了一些可解子群的例子,包括一个不是虚拟幂零的,并且以非明显的方式嵌入的子群。

英文摘要:

For any right-angled Artin group, we show that its outer automorphism group contains either a finite-index nilpotent subgroup or a nonabelian free subgroup. This is a weak Tits alternative theorem. We find a criterion on the defining graph that determines which case holds. We also consider some examples of solvable subgroups, including one that is not virtually nilpotent and is embedded in a non-obvious way.

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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