Divisibility of the Multiplicative Order Modulo Monic Irreducible Polynomials Over Finite Fields

Fuente: arXiv
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Main Author: Da Conceição, Joaquim Cera
Format: Preprint
Published: 2024
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author Da Conceição, Joaquim Cera
author_facet Da Conceição, Joaquim Cera
contents We consider the set of monic irreducible polynomials $P$ over a finite field $\mathbb{F}_q$ such that the multiplicative order modulo $P$ of some a in $\mathbb{F}_q(T)$ is divisible by a fixed positive integer $d$. Call $R_q(a,d)$ this set. We show the existence or non-existence of the density of $R_q(a,d)$ for three distinct notions of density. In particular, the sets $R_q(a,d)$ have a Dirichlet density. Under some assumptions, we prove simple formulas for the density values.
format Preprint
id arxiv_https___arxiv_org_abs_2412_09107
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Divisibility of the Multiplicative Order Modulo Monic Irreducible Polynomials Over Finite Fields
Da Conceição, Joaquim Cera
Number Theory
11R44, 11T06, 11N37, 11R58
We consider the set of monic irreducible polynomials $P$ over a finite field $\mathbb{F}_q$ such that the multiplicative order modulo $P$ of some a in $\mathbb{F}_q(T)$ is divisible by a fixed positive integer $d$. Call $R_q(a,d)$ this set. We show the existence or non-existence of the density of $R_q(a,d)$ for three distinct notions of density. In particular, the sets $R_q(a,d)$ have a Dirichlet density. Under some assumptions, we prove simple formulas for the density values.
title Divisibility of the Multiplicative Order Modulo Monic Irreducible Polynomials Over Finite Fields
topic Number Theory
11R44, 11T06, 11N37, 11R58
url https://arxiv.org/abs/2412.09107