Elements of high order in finite fields specified by binomials

Let $F_q$ be a field with $q$ elements, where $q$ is a power of a prime number $p\geq 5$. For any integer $m\geq 2$ and $a\in F_q^*$ such that the polynomial $x^m-a$ is irreducible in $F_q[x]$, we combine two different methods to explicitly construct elements of high order in the field $F_q[x]/\lang...

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Main Authors: V. Bovdi, A. Diene, R. Popovych
Format: Article
Language:English
Published: Vasyl Stefanyk Precarpathian National University 2022-06-01
Series:Karpatsʹkì Matematičnì Publìkacìï
Subjects:
Online Access:https://journals.pnu.edu.ua/index.php/cmp/article/view/5880
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author V. Bovdi
A. Diene
R. Popovych
author_facet V. Bovdi
A. Diene
R. Popovych
author_sort V. Bovdi
collection DOAJ
description Let $F_q$ be a field with $q$ elements, where $q$ is a power of a prime number $p\geq 5$. For any integer $m\geq 2$ and $a\in F_q^*$ such that the polynomial $x^m-a$ is irreducible in $F_q[x]$, we combine two different methods to explicitly construct elements of high order in the field $F_q[x]/\langle x^m-a\rangle$. Namely, we find elements with multiplicative order of at least $5^{\sqrt[3]{m/2}}$, which is better than previously obtained bound for such family of extension fields.
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spelling doaj.art-8af9f72ffbbf4022ba42559e4b10c0162024-04-16T07:10:59ZengVasyl Stefanyk Precarpathian National UniversityKarpatsʹkì Matematičnì Publìkacìï2075-98272313-02102022-06-0114123824610.15330/cmp.14.1.238-2465085Elements of high order in finite fields specified by binomialsV. Bovdi0https://orcid.org/0000-0001-5750-163XA. Diene1R. Popovych2United Arab Emirates University, Al Ain, United Arab EmiratesUnited Arab Emirates University, Al Ain, United Arab EmiratesLviv Polytechnic National University, 12 Bandera str., 79013, Lviv, UkraineLet $F_q$ be a field with $q$ elements, where $q$ is a power of a prime number $p\geq 5$. For any integer $m\geq 2$ and $a\in F_q^*$ such that the polynomial $x^m-a$ is irreducible in $F_q[x]$, we combine two different methods to explicitly construct elements of high order in the field $F_q[x]/\langle x^m-a\rangle$. Namely, we find elements with multiplicative order of at least $5^{\sqrt[3]{m/2}}$, which is better than previously obtained bound for such family of extension fields.https://journals.pnu.edu.ua/index.php/cmp/article/view/5880finite fieldmultiplicative orderelement of high multiplicative orderbinomial
spellingShingle V. Bovdi
A. Diene
R. Popovych
Elements of high order in finite fields specified by binomials
Karpatsʹkì Matematičnì Publìkacìï
finite field
multiplicative order
element of high multiplicative order
binomial
title Elements of high order in finite fields specified by binomials
title_full Elements of high order in finite fields specified by binomials
title_fullStr Elements of high order in finite fields specified by binomials
title_full_unstemmed Elements of high order in finite fields specified by binomials
title_short Elements of high order in finite fields specified by binomials
title_sort elements of high order in finite fields specified by binomials
topic finite field
multiplicative order
element of high multiplicative order
binomial
url https://journals.pnu.edu.ua/index.php/cmp/article/view/5880
work_keys_str_mv AT vbovdi elementsofhighorderinfinitefieldsspecifiedbybinomials
AT adiene elementsofhighorderinfinitefieldsspecifiedbybinomials
AT rpopovych elementsofhighorderinfinitefieldsspecifiedbybinomials