Let G be a permutation group on a finite set. A base for G is a sequence X=α1,α2,…,αx of points such that the only element of G fixing all the aj is the identity （C. C. Sims, 1970）. If any proper subsequence of ...Let G be a permutation group on a finite set. A base for G is a sequence X=α1,α2,…,αx of points such that the only element of G fixing all the aj is the identity （C. C. Sims, 1970）. If any proper subsequence of the base X is not a base for G, then X is called an irreducible展开更多
文摘Let G be a permutation group on a finite set. A base for G is a sequence X=α1,α2,…,αx of points such that the only element of G fixing all the aj is the identity （C. C. Sims, 1970）. If any proper subsequence of the base X is not a base for G, then X is called an irreducible
