Hermitian Self-dual Generalized Reed-Solomon Codes

Fuente: arXiv
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Main Authors: Zhao, Chun'e, Ma, Wenping
Format: Preprint
Published: 2026
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_version_ 1866914310529220608
author Zhao, Chun'e
Ma, Wenping
author_facet Zhao, Chun'e
Ma, Wenping
contents Maximum Distance Separable (MDS) self-dual codes are of significant theoretical and practical importance. Generalized Reed-Solomon (GRS) codes are the most prominent MDS codes. Correspondingly there have been many research on constructions of Euclidean self-dual MDS codes by using GRS codes. However, the study on Hermitian self-dual GRS codes is relatively limited. Since Hermitian self-dual GRS codes do not exist for $n>q+1$, this paper is devoted to an investigation of GRS codes in the case where $n\le q+1$. First, we prove that when $n\leq q+1$, there are only two classes of Hermitian self-dual GRS codes, confirming the conjecture in [13] and providing its proof simultaneously. Second, we present two explicit construction methods. Thus, the existence and construction of Hermitian self-dual GRS codes are fully solved.
format Preprint
id arxiv_https___arxiv_org_abs_2602_06377
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Hermitian Self-dual Generalized Reed-Solomon Codes
Zhao, Chun'e
Ma, Wenping
Information Theory
Maximum Distance Separable (MDS) self-dual codes are of significant theoretical and practical importance. Generalized Reed-Solomon (GRS) codes are the most prominent MDS codes. Correspondingly there have been many research on constructions of Euclidean self-dual MDS codes by using GRS codes. However, the study on Hermitian self-dual GRS codes is relatively limited. Since Hermitian self-dual GRS codes do not exist for $n>q+1$, this paper is devoted to an investigation of GRS codes in the case where $n\le q+1$. First, we prove that when $n\leq q+1$, there are only two classes of Hermitian self-dual GRS codes, confirming the conjecture in [13] and providing its proof simultaneously. Second, we present two explicit construction methods. Thus, the existence and construction of Hermitian self-dual GRS codes are fully solved.
title Hermitian Self-dual Generalized Reed-Solomon Codes
topic Information Theory
url https://arxiv.org/abs/2602.06377