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arXiv 2008.08382math.GR
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Droms RAAG上极限群的直积子群

Subgroups of direct products of limit groups over Droms RAAGs

Jone Lopez de Gamiz Zearra

摘要:

Bridson,Howie,Miller和Short的一个结果指出,如果$S$是$n$极限群在自由群上的直积的$FP_{n}(\mathbb{Q})$型子群,则$S$实际上是极限群在自由群上的直积。此外,它们还不对称地呈现剩余自由群。本文将这些结果推广到Droms直角Artin群上的极限群。Droms RAAG是直角Artin群,其所有的直角Artin生成的子群都是RAAG。此外,我们证明了广义共轭问题是可解的,为residually一个Droms RAAG的群,其residually presentable子群是可分的。

英文摘要:

A result of Bridson, Howie, Miller and Short states that if $S$ is a subgroup of type $FP_{n}(\mathbb{Q})$ of the direct product of $n$ limit groups over free groups, then $S$ is virtually the direct product of limit groups over free groups. Furthermore, they characterise finitely presented residually free groups. In this paper these results are generalised to limit groups over Droms right-angled Artin groups. Droms RAAGs are the right-angled Artin groups with the property that all of their finitely generated subgroups are again RAAGs. In addition, we show that the generalised conjugacy problem is solvable for finitely presented groups that are residually a Droms RAAG and that their finitely presentable subgroups are separable.

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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