On the gcd graphs over polynomial rings

Fuente: arXiv
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Auteurs principaux: Mináč, Ján, Nguyen, Tung T., Tân, Nguyen Duy
Format: Preprint
Publié: 2024
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author Mináč, Ján
Nguyen, Tung T.
Tân, Nguyen Duy
author_facet Mináč, Ján
Nguyen, Tung T.
Tân, Nguyen Duy
contents Gcd-graphs over the ring of integers modulo $n$ are a natural generalization of unitary Cayley graphs. The study of these graphs has foundations in various mathematical fields, including number theory, ring theory, and representation theory. Using the theory of Ramanujan sums, it is known that these gcd-graphs have integral spectra; i.e., all their eigenvalues are integers. In this work, inspired by the analogy between number fields and function fields, we define and study gcd-graphs over polynomial rings with coefficients in finite fields. We establish some fundamental properties of these graphs, emphasizing their analogy to their counterparts over $\mathbb{Z}.$
format Preprint
id arxiv_https___arxiv_org_abs_2409_01929
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On the gcd graphs over polynomial rings
Mináč, Ján
Nguyen, Tung T.
Tân, Nguyen Duy
Number Theory
Commutative Algebra
Combinatorics
5C25, 05C50, 05C51
Gcd-graphs over the ring of integers modulo $n$ are a natural generalization of unitary Cayley graphs. The study of these graphs has foundations in various mathematical fields, including number theory, ring theory, and representation theory. Using the theory of Ramanujan sums, it is known that these gcd-graphs have integral spectra; i.e., all their eigenvalues are integers. In this work, inspired by the analogy between number fields and function fields, we define and study gcd-graphs over polynomial rings with coefficients in finite fields. We establish some fundamental properties of these graphs, emphasizing their analogy to their counterparts over $\mathbb{Z}.$
title On the gcd graphs over polynomial rings
topic Number Theory
Commutative Algebra
Combinatorics
5C25, 05C50, 05C51
url https://arxiv.org/abs/2409.01929