By s-semipermutable maximal subgroups of non-cyclic Sylow subgroups to characterize the structure of finite groups, the results were obtained as follows: Let G be a finite group and F a saturated formation containing U. Suppose G has a solvable normal subgroup H such that G/H∈F. If every maximal subgroup of non-cyclic Sylow subgroups of F(H) is s-semipermutable in G, then G ∈F.%利用非循环Sylow-子群的极大子群的S-半置换性质,刻画了有限群的结构,得到:令G是一个有限群,F是包含U的饱和群系,假设G有一个可解正规子群H,使得G/H∈F. 如果F(H)的每个非循环Sylow-子群的极大子群在G中S-半置换,那么G ∈F.
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