Principal blocks with 5 irreducible characters

Principal blocks with 5 irreducible characters
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DOI:
10.1016/j.jalgebra.2021.06.009
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发表时间:
2020-10
期刊:
arXiv: Group Theory
影响因子:
--
通讯作者:
Noelia Rizo;A. S. Fry;Carolina Vallejo
Noelia Rizo;A. S. Fry;Carolina Vallejo
中科院分区:
其他
文献类型:
--
作者:
Noelia Rizo;A. S. Fry;Carolina Vallejo

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证明了如果有限群G的主p-块恰好包含5个不可约的普通特征标,则G的Sylowp-子群具有5阶、7阶或同构于8阶非交换2-群之一.
We show that if the principalp-block of a finite groupGcontains exactly 5 irreducible ordinary characters, then a Sylowp-subgroup ofGhas order 5, 7 or is isomorphic to one of the non-abelian 2-groups of order 8.