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arXiv 2602.23819math.GR
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抛物面子群与虚拟Artin群的字问题

Parabolic subgroups and word problem in virtual Artin groups

Instituto de Matemáticas de la Universidad de Sevilla (IMUS) and Departamento de Álgebra, Universidad de Sevilla(塞维利亚大学数学研究所(IMUS)和代数系);Department of Mathematics, Heriot-Watt University and Maxwell Institute for Mathematical Sciences(赫瑞-瓦特大学数学系和麦克斯韦数学科学研究所);Université Bourgogne Europe, CNRS, IMB, UMR 5584(勃艮第欧洲大学、法国国家科学研究中心、IMB)

José Gálvez Mateos, Federica Gavazzi, Luis Paris

AI总结:

本文研究了虚拟Artin群中标准抛物面子群的字问题,证明了在特定条件下虚拟Artin群具有可解的字问题,并探讨了强成员问题的可解性。

摘要:

我们首先建立了关于虚拟Artin群标准抛物面子群的两个基本结果。我们首先证明标准抛物面子群自然同构于一个虚拟Artin群。其次,我们证明两个标准抛物面子群的交集是一个标准抛物面子群。我们的主要结果是,如果给定的虚拟Artin群VA[Γ]的所有无限自由标准抛物面子群都有可解的字问题,那么VA[Γ]本身也有可解的字问题。由此可知,虚拟Artin群的FC类型以及更一般地,仿射-FC类型的虚拟Artin群具有可解的字问题。我们还证明,如果虚拟Artin群VA[Γ]具有可解的字问题,那么该群中任意标准抛物面子群的强成员问题也是可解的。

英文摘要:

We begin by establishing two fundamental results on standard parabolic subgroups of virtual Artin groups. We first show that a standard parabolic subgroup is naturally isomorphic to a virtual Artin group. Second, we prove that the intersection of two standard parabolic subgroups is a standard parabolic subgroup. Our main result is that, if all free of infinity standard parabolic subgroups of a given virtual Artin group VA[Γ] have a solvable word problem, then VA[Γ] itself has a solvable word problem. It follows that virtual Artin groups of FC type and, more generally, of affine-FC type, have a solvable word problem. We also prove that, if a virtual Artin group VA[Γ] has a solvable word problem, then the strong membership problem for any standard parabolic subgroup in VA[Γ] is solvable.

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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