Results 31 to 40 of about 226,788 (288)

On skew cyclic codes over $ M_{2}(\mathbb{F}_{2}) $

open access: yesAIMS Mathematics, 2023
The algebraic structure of skew cyclic codes over $ M_{2} $($ \mathbb{F}_2 $), using the $ \mathbb{F}_4 $-cyclic algebra, is studied in this work. We determine that a skew cyclic code with a polynomial of minimum degree $ d(x) $ is a free code generated ...
Xuesong Si, Chuanze Niu
doaj   +1 more source

Lifted codes and lattices from codes over finite chain rings [PDF]

open access: yesCryptography and Communications, 2020
In this paper we give the generalization of lifted codes over any finite chain ring. This has been done by using the construction of finite chain rings from p-adic fields.
Reguia Lamia Bouzara   +2 more
semanticscholar   +1 more source

Self dual, reversible and complementary duals constacyclic codes over finite local Frobenius non-chain rings of length 5 and nilpotency index 4.

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
Over finite local Frobenius non-chain rings of length 5 and nilpotency index 4 and when the length of the code is relatively prime to the characteristic of the residue field of the ring, the structure of the dual of γ-constacyclic codes is established ...
Castillo-Guillén C. A.   +1 more
doaj   +1 more source

Manifestations of strong electron correlation in polyacene: Fundamental gap, density of states, and photoconductivity

open access: yesCarbon Trends, 2022
The quasi-particle (QP) bands of polyacene (PAC) – an infinite linear chain of fused benzene rings – are reconstructed from the QP spectra of oligoacenes (OACs) with N∈[5,30] (N is the number of fused rings) obtained using a computational methodology ...
Anna Pomogaeva   +2 more
doaj   +1 more source

LIFTED CODES OVER FINITE CHAIN RINGS [PDF]

open access: yes, 2011
In this paper, we study lifted codes over finite chain rings.
Dougherty, Steven T.   +2 more
core   +1 more source

Skew constacyclic codes over finite chain rings

open access: yesAdvances in Mathematics of Communications, 2012
Skew polynomial rings over finite fields ([7] and [10]) and over Galois rings ([8]) have been used to study codes. In this paper, we extend this concept to finite chain rings. Properties of skew constacyclic codes generated by monic right divisors of $x^n- $, where $ $ is a unit element, are exhibited.
Jitman, Somphong   +2 more
openaire   +2 more sources

Contraction of cyclic codes over finite chain rings [PDF]

open access: yesDiscrete Mathematics, 2018
Let $\texttt{R}$ be a commutative finite chain ring of invariants $(q,s)$ and $ (\texttt{R})$ the Teichm ller's set of $\texttt{R}.$ In this paper, the trace representation cyclic $\texttt{R}$-linear codes of length $\ell,$ is presented, when $\texttt{gcd}(\ell, q) = 1.$ We will show that the contractions of some cyclic $\texttt{R}$-linear codes of ...
Fotue Tabue, Alexandre   +1 more
openaire   +3 more sources

Expanders on matrices over a finite chain ring, I

open access: yesInternational Journal of Mathematics, 2023
In this work and its sequel, we study the expanding phenomenon of matrices over a finite chain ring of large residue field. A sum-product estimate is proved. It is shown that [Formula: see text] is a moderate expander on [Formula: see text] matrices with exponent [Formula: see text].
Dung M. Ha, Hieu T. Ngo
openaire   +3 more sources

New quantum codes from constacyclic codes over finite chain rings [PDF]

open access: yesQuantum Information Processing
Let R be the finite chain ring Fp2m+uFp2m\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt ...
Yongsheng Tang   +3 more
semanticscholar   +1 more source

Dimensional groups and fields [PDF]

open access: yes, 2019
We shall define a general notion of dimension, and study groups and rings whose interpretable sets carry such a dimensio. In particular, we deduce chain conditions for groups, definability results for fields and domains, and show that pseudofinite groups
Wagner, Frank Olaf
core   +1 more source

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