Some problems of Wielandt revisited
Some problems of Wielandt revisited
复制标题
重新审视维兰特的一些问题
DOI:
10.1016/j.jalgebra.2005.09.013
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发表时间:
2006
影响因子:
0.9
通讯作者:
W. Knapp
中科院分区:
文献类型:
--
作者:
W. Knapp
Several problems in the theory of finite permutation groups considered before by H. Wielandt are attacked by new and traditional methods. One new method is given by the theorem that a semisimple subgroup A of a group G normalizing a different subgroup B isomorphic to A forces that the centralizer in AB of B is non-trivial, hence B is not the generalized Fitting subgroup of its normalizer. This theorem is applied in proving that the paired subconstituent [Formula: see text] of a primitive permutation group G is faithful if the non-trivial subconstituent GαΔ(α)is regular. If GαΔ(α)is a non-abelian simple group all of whose proper subgroups are solvable then the regularity of GαΔ(α)even implies that GαΔ(α)is faithful. Also several theorems are obtained for the case that a non-trivial subconstituent GαΔ(α)is nilpotent or, more generally, that Gαβis subnormal in Gαfor β∈Δ(α).
DOI:
--
发表时间:
1974
期刊:
影响因子:
--
作者:
W. Knapp
通讯作者:
W. Knapp