Groups of units of integral group rings commensurable with direct products of free-by-free groups

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We classify the finite groups $G$ such that the group of units of the integral group ring ${\mathbb Z} G$ has a subgroup of finite index which is a direct product of free-by-free groups.
30 pages, Replaced on October 17 2006 after major revision

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Group Theory, Rings and Algebras, 16U60, 11R27, 16A26

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http://salesiana.dossiersoluciones.com/handle/123456789/104987

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0511472
 http://arxiv.org/abs/math/0511472

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arXiv