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On codes in the projective linear group PGL(2,q)
Finite Fields and Their Applications ( IF 1.2 ) Pub Date : 2021-06-03 , DOI: 10.1016/j.ffa.2021.101812
Tao Feng , Weicong Li , Jingkun Zhou

In this paper, we resolve a conjecture of Green and Liebeck (2019) [3] on codes in PGL(2,q). To be specific, we show that: if D is a dihedral subgroup of order 2(q+1) in G=PGL(2,q), and A={gG:gq+1=1,g21}, then λG=AD, where λ=q or q1 according as q is even or odd.



中文翻译:

关于射影线性群 PGL(2, q ) 中的代码

在本文中,我们解决了 Green 和 Liebeck (2019) [3] 关于代码的猜想 PGL(2,q). 具体来说,我们证明:如果D是阶的二面体子群2(q+1)G=PGL(2,q), 和 一种={GGGq+1=1,G21}, 然后 λG=一种D, 在哪里 λ=q 或者 q-1根据q是偶数还是奇数。

更新日期:2021-06-03
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