Torsion subgroups in the units of the integral group ring of PSL(2, p (3))

摘要

We show that for every prime r all r-subgroups in the normalized units of the integral group ring of PSL(2, p (3)) are isomorphic to subgroups of PSL(2, p (3)). This answers a question of Hertweck et al. for this series of groups.