主要证明了:若有限群G只含两个非次正规子群共轭类H={H1,H2,…,Hm}和K={K1,K2,…,Kn},则G可解.其中IGI含两个或三个素因子,且G满足下列情形之一: (1)G—H Q,其中H是具有循环极大子群的p-群,Q是Sylow q-子群,p,q为互不相同的素数; (2)G= Q,其中K是G的循环Sylow p-子群,Q是G的Sylow q-子群; (3)G—A B,其中A是p^mq^n阶非幂零有限内-Abel群,B是Sylow r-子群,p,q,r为互不相同的素数.
In this paper the authors mainly proved that: If the finite group G has two conjugate classes of non-subnormal subgroups H= {H1 ,H2 …,Hm} and K= {K1 ,K2 …,Kn} , then G is soluble, and |G| has at most three prime factors, and G satisting one of the following conditions: (1) G= H Q, where H is a p-group which has cyclic maximal subgroups, and Q is the Sylowq-subgroup of G, p and q are different primes. (2) G:K Q, where K is a Sylow p-subgroup of G, K is cyclic, and Q is the Sylow q-subgroup of G. (3) G:A B, where A is a non-nilpotent finite inner-abel group with order p^mq^n, B the a Sylow r-of G, and p, q, r are different primes.