假设群A经自同构互素地作用在G上.设χ是G的一个A-不变不可约特征标,π(G,A)表示Glauberman-Isaacs特征标对映.对于B A, T.R.Wolf曾猜想χπ(G,A)是χπ(G,B)C的一个不可约成份,此处C = CG(A).设G = N /\ H且( N , H ) = 1,假定H是A-不...假设群A经自同构互素地作用在G上.设χ是G的一个A-不变不可约特征标,π(G,A)表示Glauberman-Isaacs特征标对映.对于B A, T.R.Wolf曾猜想χπ(G,A)是χπ(G,B)C的一个不可约成份,此处C = CG(A).设G = N /\ H且( N , H ) = 1,假定H是A-不变的且N是一个Sylow塔群, N的Sylow-子群是交换的.在本文中,我们证明了:如果这个猜想对所有H的A-不变子群成立,则猜想对G也成立.展开更多
Intuitionistic fuzzy sets are generalized fuzzy sets which were first introduced by Atanassov in 1986. In this paper, we introduce the concept of intuitionistic fuzzy M-subsemigroups of an M-semigroup M with respect t...Intuitionistic fuzzy sets are generalized fuzzy sets which were first introduced by Atanassov in 1986. In this paper, we introduce the concept of intuitionistic fuzzy M-subsemigroups of an M-semigroup M with respect to an s-norm S and a t-norm T on in-tuitionistic fuzzy sets and study their properties. In particular, intuitionistic (S,T)-direct products of M-semigroups are considered and some recent results of fuzzy M-subsemigroups of M-semigroups obtained by Zhan and Tan^[21] are extended and generalized to intuitionistic (S, T)-fuzzy M-subsemigroups over M-semigroups.展开更多
文摘假设群A经自同构互素地作用在G上.设χ是G的一个A-不变不可约特征标,π(G,A)表示Glauberman-Isaacs特征标对映.对于B A, T.R.Wolf曾猜想χπ(G,A)是χπ(G,B)C的一个不可约成份,此处C = CG(A).设G = N /\ H且( N , H ) = 1,假定H是A-不变的且N是一个Sylow塔群, N的Sylow-子群是交换的.在本文中,我们证明了:如果这个猜想对所有H的A-不变子群成立,则猜想对G也成立.
基金the National Natural Science Foundation of China(60474022)the Key Science Foundation of Education Committee of Hubei Province(2004Z002D200529001).
文摘Intuitionistic fuzzy sets are generalized fuzzy sets which were first introduced by Atanassov in 1986. In this paper, we introduce the concept of intuitionistic fuzzy M-subsemigroups of an M-semigroup M with respect to an s-norm S and a t-norm T on in-tuitionistic fuzzy sets and study their properties. In particular, intuitionistic (S,T)-direct products of M-semigroups are considered and some recent results of fuzzy M-subsemigroups of M-semigroups obtained by Zhan and Tan^[21] are extended and generalized to intuitionistic (S, T)-fuzzy M-subsemigroups over M-semigroups.