Free groups and subgroups of finite index in the unit group of an integral group ring

In this article we construct free groups and subgroups of finite index in the unit group of the integral group ring of a finite non-abelian group G for which every non-linear irreducible complex representation is of degree 2 and with commutator subgroup G0 a central elementary abelian 2-group.

Bibliographic Details
Authors: Dooms, Ann, Jespers, Eric, Ruiz Marín, Manuel
Format: article
Publication Date:2007
Country:España
Institution:Universidad Politécnica de Cartagena(UPCT)
Repository:Repositorio Digital UPCT
OAI Identifier:oai:repositorio.upct.es:10317/1012
Online Access:http://hdl.handle.net/10317/1012
Access Level:Open access
Keyword:Subgrupo de indice libre y finito
Anillo de grupo integral
Unidad de grupo
Free and finite index subgroups
Integral group ring
Unit group
Economía Aplicada
Description
Summary:In this article we construct free groups and subgroups of finite index in the unit group of the integral group ring of a finite non-abelian group G for which every non-linear irreducible complex representation is of degree 2 and with commutator subgroup G0 a central elementary abelian 2-group.