Blocks with the hyperfocal subgroup Z2n×Z2n
Blocks with the hyperfocal subgroup Z2n×Z2n
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具有超焦子组 Z2nàZ2n 的块
DOI:
10.1016/j.jalgebra.2018.09.039
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发表时间:
2017-09
影响因子:
0.9
通讯作者:
Yuanyang Zhou
中科院分区:
文献类型:
--
作者:
Xueqin Hu;Yuanyang Zhou
In this paper, we calculate the numbers of irreducible ordinary characters and irreducible Brauer characters in a block of a finite group G, whose associated fusion system over a 2-subgroup P of G (which is a defect group of the block) has hyperfocal subgroup Z 2 n× Z 2 n for a positive integer number n, when the block is controlled by the normalizer N G (P) and the hyperfocal subgroup is contained in the center of P, or when the block is not controlled by N G (P) and the hyperfocal subgroup is contained in the center of the unique essential subgroup in the fusion system and has order at most 16. In particular, Alperin's weight conjecture holds in the considered cases.
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DOI:
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发表时间:
2009-05
期刊:
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影响因子:
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