Results 41 to 50 of about 547 (94)

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

Quantum Codes as an Application of Constacyclic Codes

open access: yesAxioms
The main focus of this paper is to analyze the algebraic structure of constacyclic codes over the ring R=Fp+w1Fp+w2Fp+w22Fp+w1w2Fp+w1w22Fp, where w12−α2=0, w1w2=w2w1, w23−β2w2=0, and α,β∈Fp∖{0}, for a prime p. We begin by introducing a Gray map defined over R, which is associated with an invertible matrix.
Raza, Mohd   +8 more
openaire   +2 more sources

Polycyclic codes over Galois rings with applications to repeated-root constacyclic codes

open access: yes, 2012
Cyclic, negacyclic and constacyclic codes are part of a larger class of codes called polycyclic codes; namely, those codes which can be viewed as ideals of a factor ring of a polynomial ring.
Lopez-Permouth, Sergio R.   +3 more
core   +1 more source

Several families of irreducible constacyclic and cyclic codes

open access: yesDesigns, Codes and Cryptography, 2023
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. Several families of irreducible constacyclic codes with a few weights and several families of optimal constacyclic codes are ...
Zhonghua Sun 0001   +2 more
openaire   +4 more sources

Quantum Codes from Galois Hulls of Constacyclic Codes over a Finite Non-Chain Ring

open access: yesEntropy
We study the algebraic structures of constacyclic codes over a new finite non-chain ring R and their l-Galois dual codes based on a new Gray map ϕ and determine the dimensions of the l-Galois hull of constacyclic codes over R.
Enbin Zhang, Bo Kong, Xiying Zheng
doaj   +1 more source

Constacyclic codes over finite fields

open access: yesFinite Fields and Their Applications, 2012
An equivalence relation called isometry is introduced to classify constacyclic codes over a finite field; the polynomial generators of constacyclic codes of length $\ell^tp^s$ are characterized, where $p$ is the characteristic of the finite field and $\ell$ is a prime different from $p$.
Bocong Chen   +3 more
openaire   +3 more sources

The Galois variance of constacyclic codes

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

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

New quantum codes from skew constacyclic codes

open access: yesAdvances in Mathematics of Communications, 2023
In the paper under review, the authors construct quantum codes from skew constacyclic codes over the finite commutative non-chain ring of order \(p^{2^{\ell} m}\) with characteristic odd prime \(p\): \[ R_{\ell,m} = \mathbb{F}_{p^m}[v_1,v_2,\dots,v_{\ell}]/\langle v^2_i-1, v_iv_j-v_jv_i\rangle_{1\leq i, j\leq \ell}, \] where \(m\) and \(\ell\) are ...
Ram Krishna Verma   +3 more
openaire   +2 more sources

Structure and Enumeration of Constacyclic Codes over Cube-Zero Local Rings of Order q5

open access: yesMathematics
We investigate λ-constacyclic codes of length n over finite commutative local rings R of characteristic p and order q5, where q=pm is an odd prime power, whose Jacobson radical N satisfies N3=0≠N2, under the coprimality condition gcd(n,p)=1.
Sami H. Saif, Shayea Aldossari
doaj   +1 more source

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