Local partial covering subgroups in finite groups
Local partial covering subgroups in finite groups
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有限群中的局部部分覆盖子群
DOI:
10.1016/j.jalgebra.2020.12.012
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发表时间:
2021-04
影响因子:
0.9
通讯作者:
Qian Guohua
中科院分区:
文献类型:
--
作者:
Qian Guohua
Let G be a finite group. Roughly speaking, a subgroup A of G is called a local partial covering subgroup if A G= A B for a suitable maximal G-invariant subgroup B of A G. Our main result is as follows: Let p d be a prime power with p≤ p d≤| G| p, assume that all subgroups of p d, and all cyclic subgroups of order 4 when p d= 2 and a Sylow 2-subgroup of G is nonabelian, of G are local partial covering subgroups. Then G/O p′ p (G) is p-supersolvable; furthermore if G is not p-supersolvable, then O p′ p (G)/Φ is a homogeneous F p [G]-module where Φ/O p′(G)= Φ (G/O p′(G)), and each irreducible constituent has dimension dividing d− log p| Φ| p.
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