[1] Guo W. The Theory of Classes of Groups [M]. Beijing/ New York: Science Press/ Kluwer Academic Publisher,2000. [2] Huppert B. Endliche Gruppen Ⅰ [M]. Berlin/ Heidelberg/ New York: Springer-Verlag, 1967. [3] Kegel O H. Sylow-Gruppen and subnormalteiler endlicher Gruppen [J]. Math Z, 1962, 78: 205-221. [4] Schmid P. Subgroups permutable with all Sylow subgroups[J]. J Algebra, 1998, 207: 285-293. [5] Wang Y. c-normality of groups and its properties[J]. J Algebra, 1996, 180: 954-965. [6] Guo X, Shum K P. On c-normal maximal and minimal subgroups of Sylow p-subgroups of finite groups[J].Arch Math, 2003, 80: 561-569. [7] Ramadan M, Mohamed M E, Heliel A A. On c-normality of certain subgroups of prime power order of finite groups[J]. Arch Math, 2005, 85: 203-210. [8] Skiba A N. On weakly s-permutable subgroups of finite groups[J]. J Algebra, 2007, 315: 192-209. [9] Doerk K, Hawkes T. Finite Soluble Groups[M]. Berlin/New York: Walter de Gruyter, 1992. [10] Wielandt H. Subnormal subgroups and permutation groups [C]// Lectures given at the Ohio State University. Columbus, Ohio: Dept of Mathematics, Ohio State Univ, 1971. [11] Li Y, Wang Y, Wei H. The influence of π-quasinormality of some subgroups of a finite group[J]. Arch Math (Basel), 2003, 81: 245-252. [12] Ballester-Bolinches A, Esteban-Romero R, Asaad M. Pruducts of Finite Groups[M]. Berlin: Walter de Gruyter, 2010: 52-91. [13] Gorenstein D. Finite Groups [M]. New York: Chelsea Publishing Company, 1968. [14] Miao L. On weakly s-permutable subgroups of finite groups [J]. Bull Braz Math Soc, 2010, 41(2): 223-235. |