Groups of units of integral group rings commensurable with direct products of free-by-free groups
Eric Jespers, Antonio Pita, Angel del Rio, Manuel Ruiz, Pavel Zalesski
math.GRarXiv:math/0511472
Abstract
We classify the finite groups G such that the group of units of the integral group ring Z G has a subgroup of finite index which is a direct product of free-by-free groups.
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