In this paper, discussion the impact of special normal subgroup of a finite group, some properties of the quotient group constituted by these special normal subgroup, and also obtained a nilpotent group Criterion.The article is divided into a total of the following three parts:The first chapter lists some basic concepts and theorems related to the text.In chapter two the influence of some special normal subgroup on finite group.In chapter three the case of frattini-group... |