On the Automorphism Group of the Integral Group Ring ofFinite P-group with Cyclic Commutator Subgroup

Suppose G is a finite group,p is always a prime number.We have proved that the finite group G is a E.R.group when the order of its commutator subgroup is a prime number,so we got two sufficient conditions of a finite group to be a E.R.group.In this note,we extend these results and prove that finite p-group with cyclic commutator subgroup G is a E.R.group,here G is generated by two elements