Nonsolvable finite groups all of whose local subgroups are solvable, IV
Nonsolvable finite groups all of whose local subgroups are solvable, IV
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DOI:
10.2140/pjm.1970.33.451
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发表时间:
1968-05
影响因子:
0.6
通讯作者:
J. Thompson
中科院分区:
文献类型:
--
作者:
J. Thompson
Proof. If p is odd, choose S 3 e ^ * ( p ) , while if p = 2, choose S3 e ^ ( 2 ) . We must show that either S3 centralizes every element of H(33; p') or p = 3, S3 e ^ * ( 3 ) ^ ( 3 ) and some element of ^ ( 3 ) centralizes a quaternion subgroup of ©. Let ^ be a Sp-subgroup of JV(S3), so that $ is a S^-subgroup of {$. Proceeding by way of contradiction, let D be an element of M(S3; p') minimal subject to [O, S3] ^ 1. Then Q is a g-group for some prime q φ Pj Q = [£}, S3], and S30 = C^(Q) has order p. Let (£ C(S30), e x = Cφ(S30), and let ^3* be a S^-subgroup of K containing (£le Hypothesis 7.1 implies that Op/(g) = 1. Let φ o = Op(<£). If [5β0, S3] S 33, then