Supported by National Natural Science Foundation of China (Grant No. 10671058)
Let G and N be arbitrary groups. In this paper, we construct an associated group extension εx of N/Z(N) by G for any group homomorphism X : G → Out N, and prove that X can be lifted to a group action, that is, a ...
supported by National Natural Science Foundation of China (Grant No.10671058);Doctor Foundation of Henan University of Technology (Grant No. 2009BS029)
In this paper, the automorphism group of a generalized extraspecial p-group G is determined, where p is a prime number. Assume that |G| = p 2n+m and |ζG| = p m , where n 1 and m 2. (1) When p is odd, let Aut G G = {...