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A Counting Proof for When 2 Is a Quadratic Residue
The American Mathematical Monthly ( IF 0.5 ) Pub Date : 2020-09-13 , DOI: 10.1080/00029890.2020.1790925
Karthik Chandrasekhar 1 , Richard Ehrenborg 1 , Frits Beukers 2
Affiliation  

Abstract Using the group consisting of the eight Möbius transformations x, – x, , , , and , we present an enumerative proof of the classical result for when the element 2 is a quadratic residue in the finite field Fq .

中文翻译:

当 2 是二次余数时的计数证明

摘要 使用由八个莫比乌斯变换 x, – x, , , , 和 组成的群,我们给出了当元素 2 是有限域 Fq 中的二次残数时的经典结果的枚举证明。
更新日期:2020-09-13
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