Elements of order at most 4 in finite 2-groups, 2

Elements of order at most 4 in finite 2-groups, 2
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DOI:
10.1515/jgth.2005.8.6.683
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发表时间:
2004-01
期刊:
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通讯作者:
Z. Janko
Z. Janko
中科院分区:
其他
文献类型:
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作者:
Z. Janko

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摘要设G是一个有限p群。我们证明,如果Ω2(G)是一个特殊群,那么Ω2(G) = G。如果我们只假设(由p阶元素生成的子群)是一个特殊群,那么情况就更复杂了。若p = 2,则G = G或G是16阶的半面体群。如果p > 2,那么我们只能证明它= Hp (G)
Abstract Let G be a finite p -group. We show that if Ω2(G ) is an extraspecial group then Ω2(G ) = G . If we assume only that (the subgroup generated by elements of order p 2 ) is an extraspecial group, then the situation is more complicated. If p = 2, then either = G or G is a semidihedral group of order 16. If p > 2, then we can only show that = Hp (G ).