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Some notes on the multiplicative order of $$\alpha + \alpha ^{-1}$$ α + α - 1 in finite fields of characteristic two
Periodica Mathematica Hungarica ( IF 0.8 ) Pub Date : 2019-07-10 , DOI: 10.1007/s10998-019-00296-z
Simone Ugolini

In this paper we prove some results on the possible multiplicative order of \(\alpha + \alpha ^{-1}\) when \(\alpha \) is a non-zero element of a finite field of characteristic 2. The results of the paper rely on a previous investigation on the structure of the graphs associated with the map \(x \mapsto x + x^{-1}\) in finite fields of characteristic 2.

中文翻译:

关于$$\alpha + \alpha ^{-1}$$ α + α - 1 在特征二的有限域中的乘法顺序的一些说明

在本文中,我们证明了当 \(\alpha \) 是特征为 2 的有限域的非零元素时 \(\alpha + \alpha ^{-1}\) 的可能乘法阶的一些结果。 结果该论文的部分依赖于先前对与特征 2 的有限域中的映射 \(x \mapsto x + x^{-1}\) 相关联的图的结构的研究。
更新日期:2019-07-10
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