| A finite p-group G is said to be Τ3.4-group if any two noncommutative elements of G generate a minimal non-abelian group of order no more than p4, and the order of these minimal non-abelian subgroups is not all p3. In this paper, the properties of the Τ3.4-groups are studied, and in the case of p> 2,Τ3.4-groups are completely classified. |