Permutation polynomials of finite fields of even characteristic from character sums

Fuente: arXiv
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Main Authors: Chen, Ruikai, Mesnager, Sihem
Format: Preprint
Published: 2024
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author Chen, Ruikai
Mesnager, Sihem
author_facet Chen, Ruikai
Mesnager, Sihem
contents In this paper, we investigate permutation polynomials over the finite field $\mathbb F_{q^n}$ with $q=2^m$, focusing on those in the form $\mathrm{Tr}(Ax^{q+1})+L(x)$, where $A\in\mathbb F_{q^n}^*$ and $L$ is a $2$-linear polynomial over $\mathbb F_{q^n}$. By calculating certain character sums, we characterize these permutation polynomials and provide additional constructions.
format Preprint
id arxiv_https___arxiv_org_abs_2406_15322
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Permutation polynomials of finite fields of even characteristic from character sums
Chen, Ruikai
Mesnager, Sihem
Number Theory
In this paper, we investigate permutation polynomials over the finite field $\mathbb F_{q^n}$ with $q=2^m$, focusing on those in the form $\mathrm{Tr}(Ax^{q+1})+L(x)$, where $A\in\mathbb F_{q^n}^*$ and $L$ is a $2$-linear polynomial over $\mathbb F_{q^n}$. By calculating certain character sums, we characterize these permutation polynomials and provide additional constructions.
title Permutation polynomials of finite fields of even characteristic from character sums
topic Number Theory
url https://arxiv.org/abs/2406.15322