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[数论] 存在性问题9

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hbghlyj posted 2019-8-6 10:05 |Read mode
p是3k+1型素数,则存在正整数a,b,使得$p=a^2+ab+b^2$

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青青子衿 posted 2019-8-6 10:30
p是3k+1型素数,则存在正整数a,b,使得$p=a^2+ab+b^2$
hbghlyj 发表于 2019-8-6 10:05
回复 1# hbghlyj
\[ 31=1^2+1\cdot5+5^2 \]

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original poster hbghlyj posted 2019-8-6 12:57
Last edited by hbghlyj 2019-8-6 16:53回复 2# 青青子衿
题目意思是说任意的p 。。用二次剩余的方法大概可以证明?

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