Results 31 to 40 of about 513,670 (123)

On the equivalence of linear cyclic and constacyclic codes

open access: yesDiscrete Mathematics, 2023
We introduce new sufficient conditions for permutation and monomial equivalence of linear cyclic codes over various finite fields. We recall that monomial equivalence and isometric equivalence are the same relation for linear codes over finite fields.
Reza Dastbasteh, Petr Lisonek
openaire   +5 more sources

Constacyclic codes of length ps over Fpm+uFpm [PDF]

open access: yes, 2010
For any prime p, all constacyclic codes of length ps over the ring R=Fpm+uFpm are considered. The units of the ring R are of the forms γ and α+uβ, where α,β, and γ are nonzero elements of Fpm, which provides pm(pm−1) such constacyclic codes.
Dinh, Hai Q., Hai Q. Dinh
core   +1 more source

A family of constacyclic ternary quasi-perfect codes with covering radius 3

open access: yes, 2010
In this paper a family of constacyclic ternary quasi-perfect linear block codes is presented. This family extends the result presented in a previous work by the first two authors, where the existence of codes with the presented parameters was stated as ...
Dodunekov, Stefan,   +5 more
core   +1 more source

On the construction of constacyclically permutable codes from constacyclic codes

open access: yesAIMS Mathematics
<abstract><p>In this paper, we propose a way to partition any constacyclic code over a finite field in its equivalence classes according to the algebraic structure of the code. Such a method gives the generalization of cyclically permutable codes (CPCs), which are called constacyclically permutable codes (CCPCs), and it is useful to derive ...
Guanghui Zhang, Shuhua Liang
openaire   +2 more sources

Two Classes of Constacyclic Codes with Variable Parameters

open access: yes, 2022
Constacyclic codes over finite fields are a family of linear codes and contain cyclic codes as a subclass. Constacyclic codes are related to many areas of mathematics and outperform cyclic codes in several aspects.
Ding, Cunsheng   +2 more
core  

Z_q(Z_q+uZ_q)-Linear Skew Constacyclic Codes [PDF]

open access: yes, 2020
In this paper, we study skew constacyclic codes over the ring $\mathbb{Z}_{q}R$ where $R=\mathbb{Z}_{q}+u\mathbb{Z}_{q}$, $q=p^{s}$ for a prime $p$ and $u^{2}=0.$ We give the definition of these codes as subsets of the ring $\mathbb{Z}_{q}^{\alpha}R ...
Melakhessou, Ahlem   +3 more
core  

On $(n,\sigma)-$equivalence relation between skew constacyclic codes [PDF]

open access: yes, 2023
In this paper we generalize the notion of $n$-equivalence relation introduced by Chen et al. in \cite{Chen2014} to classify constacyclic codes of length $n$ over a finite field $\mathbb{F}_q$, where $q=p^r$ is a prime power, to the case of skew ...
Ou-azzou, Hassan   +2 more
core   +1 more source

Skew constacyclic codes over Fp+ vFp [PDF]

open access: yes, 2016
In this paper, we study a special class of linear codes called skew constacyclic codes over finite non-chain rings of the form Fp+ vFp, where p is an odd prime and v2= v.
Abu-Jazar, Akram Qasem Mahmoud   +1 more
core  

Several Families of Irreducible Constacyclic and Cyclic Codes [PDF]

open access: yes, 2022
In this paper, several families of irreducible constacyclic codes over finite fields and their duals are studied. The weight distributions of these irreducible constacyclic codes and the parameters of their duals are settled.
Ding, Cunsheng   +2 more
core   +1 more source

A q-polynomial approach to constacyclic codes

open access: yesFinite Fields and Their Applications, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Weijun Fang   +2 more
openaire   +1 more source

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