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arXiv 2101.08191math.NT
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有限域上具有一条预定迹的本原正规对的存在性

Existence of Primitive Normal Pairs with One Prescribed Trace over Finite Fields

Hariom Sharma, R. K. Sharma

摘要:

给定$m, n, q\in \mathbb{N}$使得$q$是素数幂,且$m\geq 3$,$a\in \mathbb{F}_q$,我们建立了$\mathbb{F}_{q^m}$中存在本原对$(α, f(α))$使得$α$在$\mathbb{F}_q$和$\text{Tr}_{\mathbb{F}_{q^m}/\mathbb{F}_q}(α^{-1})=a$上正规的充分条件,其中$f(x)\in \mathbb{F}_{q^m}(x)$是度和$n$的有理函数.此外,当$n=2$和$q=5^k$用于某些$k\in \mathbb{N}$时,除了最多$20$选择之外,对于所有$(q, m)$肯定存在这样的对。

英文摘要:

Given $m, n, q\in \mathbb{N}$ such that $q$ is a prime power and $m\geq 3$, $a\in \mathbb{F}_q$, we establish a sufficient condition for the existence of primitive pair $(α, f(α))$ in $\mathbb{F}_{q^m}$ such that $α$ is normal over $\mathbb{F}_q$ and $\text{Tr}_{\mathbb{F}_{q^m}/\mathbb{F}_q}(α^{-1})=a$, where $f(x)\in \mathbb{F}_{q^m}(x)$ is a rational function of degree sum $n$. Further, when $n=2$ and $q=5^k$ for some $k\in \mathbb{N}$, such a pair definitely exists for all $(q, m)$ apart from at most $20$ choices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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