%0 Journal Article 
%A Dooms, Ann
%A Jespers, Eric
%A Ruiz Marín, Manuel
%T Free groups and subgroups of finite index in the unit group of an integral group ring
%D 2007
%@ 1532-4125
%U http://hdl.handle.net/10317/1012
%X 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.
%K Economía Aplicada
%K Subgrupo de indice  libre y finito
%K Anillo de grupo integral
%K Unidad de grupo
%K Free and finite index subgroups
%K Integral group ring
%K Unit group
%~ GOEDOC, SUB GOETTINGEN