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On the influence of the fixed points of an automorphism to the structure of a group
Journal of Algebra ( IF 0.8 ) Pub Date : 2021-01-06 , DOI: 10.1016/j.jalgebra.2020.12.025 M. Yasir Kızmaz
中文翻译:
自同构的不动点对群结构的影响
更新日期:2021-01-12
Journal of Algebra ( IF 0.8 ) Pub Date : 2021-01-06 , DOI: 10.1016/j.jalgebra.2020.12.025 M. Yasir Kızmaz
Let α be a coprime automorphism of a group G of prime order and let P be an α-invariant Sylow p-subgroup of G. Assume that . Firstly, we prove that G is p-nilpotent if and only if centralizes P. In the case that G is and -free where , we show that G is p-closed if and only if normalizes P. As a consequence of these two results, we obtain that for a group H if and only if centralizes P. We also prove a generalization of the Frobenius p-nilpotency theorem for groups admitting a group of automorphisms of coprime order.
中文翻译:
自同构的不动点对群结构的影响
设α为素数为G的群G的互素同构,而P为G的α不变Sylow p-子群。假使,假设。首先,我们证明当且仅当G是p-幂幂集中P。如果G是 和 -在哪里免费 ,我们证明当且仅当G是p-封闭的标准化P。由于这两个结果,我们得出对于H组,当且仅当集中P。我们还证明了Frobenius p-幂零定理对于接纳互素数阶自同构群的群的推广。