Local permutation polynomials and their companions

التفاصيل البيبلوغرافية
العنوان: Local permutation polynomials and their companions
المؤلفون: Hasan, Sartaj Ul, Kumar, Hridesh
سنة النشر: 2024
المجموعة: Mathematics
مصطلحات موضوعية: Mathematics - Number Theory, Mathematics - Combinatorics
الوصف: Gutierrez and Urroz (2023) have proposed a family of local permutation polynomials over finite fields of arbitrary characteristic based on a class of symmetric subgroups without fixed points called $e$-Klenian groups. The polynomials within this family are referred to as $e$-Klenian polynomials. Furthermore, they have shown the existence of companions for the $e$-Klenian polynomials when the characteristic of the finite field is odd. Here, we present three new families of local permutation polynomials over finite fields of even characteristic. We also consider the problem of the existence of companions for the $e$-Klenian polynomials over finite fields of even characteristic. More precisely, we prove that over finite fields of even characteristic, the $0$-Klenian polynomials do not have any companions. However, for $e \geq 1$, we explicitly provide a companion for the $e$-Klenian polynomials. Moreover, we provide a companion for each of the new families of local permutation polynomials that we introduce.
Comment: 17 pages
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2408.03382
رقم الأكسشن: edsarx.2408.03382
قاعدة البيانات: arXiv