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首页> 外文期刊>Czechoslovak Mathematical Journal >On S -quasinormal and c -normal subgroups of a finite group
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On S -quasinormal and c -normal subgroups of a finite group

机译:关于有限群的S-准正规子群和c-正规子群

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摘要

Let be a saturated formation containing the class of supersolvable groups and let G be a finite group. The following theorems are presented: (1) G ∈ if and only if there is a normal subgroup H such that G/H ∈ and every maximal subgroup of all Sylow subgroups of H is either c-normal or S-quasinormally embedded in G. (2) G ∈if and only if there is a normal subgroup H such that G/H ∈ and every maximal subgroup of all Sylow subgroups of F*(H), the generalized Fitting subgroup of H, is either c-normal or S-quasinormally embedded in G. (3) G ∈ if and only if there is a normal subgroup H such that G/H ∈ and every cyclic subgroup of F*(H) of prime order or order 4 is either c-normal or S-quasinormally embedded in G.
机译:令其为包含超可解基团类别的饱和地层,令G为一个有限基团。给出以下定理:(1)当且仅当存在一个正常子群H使得G / H∈并且H的所有Sylow子群的每个最大子群都是c正规或S-准正规嵌入在G中时,G∈。 (2)G∈if并且仅当存在一个正规子群H使得G / H∈和F *(H)的所有Sylow子群的每个最大子群(H *的广义拟合子群)均为c正规或S时(3)G∈当且仅当存在一个正规子群H使得G / H∈和素数阶或阶4的F *(H)的每个循环子群为c正规或S时-准嵌入在G中。

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