Date：April 18th，16:00-17:00

Location：Lecture hall 210,  Building 2, Hainayuan

Abstract：

Some different new classifications of even-order second maximal subgroups are induced by localizing the quantitative characteristics and embedding properties of some special subgroups. In the classification process, the relevant characterizations of different group classes are given considering their existence and combining the strengths and weaknesses of the second maximal subgroups.