Results 31 to 40 of about 42,411 (276)

(β, γ)-Skew QC Codes with Derivation over a Semi-Local Ring

open access: yesSymmetry, 2023
In this article, we consider a semi-local ring S=Fq+uFq, where u2=u, q=ps and p is a prime number. We define a multiplication yb=β(b)y+γ(b), where β is an automorphism and γ is a β-derivation on S so that S[y;β,γ] becomes a non-commutative ring which is ...
M. Ashraf   +3 more
semanticscholar   +1 more source

The Norm of a Skew Polynomial [PDF]

open access: yesAlgebras and Representation Theory, 2020
Let D be a finite-dimensional division algebra over its center and R = D[t;σ,δ] a skew polynomial ring. Under certain assumptions on δ and σ, the ring of central quotients D(t;σ,δ) = {f/g|f ∈ D[t;σ,δ],g ∈ C(D[t;σ,δ])} of D[t;σ,δ] is a central simple ...
S. Pumplün, D. Thompson
semanticscholar   +1 more source

Prime Ideals and Strongly Prime Ideals of Skew Laurent Polynomial Rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
We first study connections between α-compatible ideals of R and related ideals of the skew Laurent polynomials ring R[x,x−1;α], where α is an automorphism of R.
E. Hashemi
doaj   +1 more source

Some Notes on Semiabelian Rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
It is proved that if a ring R is semiabelian, then so is the skew polynomial ring R[x;σ], where σ is an endomorphism of R satisfying σ(e)=e for all e∈E(R). Some characterizations and properties of semiabelian rings are studied.
Junchao Wei, Nanjie Li
doaj   +1 more source

Oddification of the cohomology of type A Springer varieties [PDF]

open access: yes, 2012
We identify the ring of odd symmetric functions introduced by Ellis and Khovanov as the space of skew polynomials fixed by a natural action of the Hecke algebra at q=-1. This allows us to define graded modules over the Hecke algebra at q=-1 that are `odd'
Aaron D. Lauda   +43 more
core   +3 more sources

Nilpotent Elements in Skew Polynomial Rings [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2017
Letbe a ring with an endomorphism and an -derivationAntoine studied the structure of the set of nilpotent elements in Armendariz rings and introduced nil-Armendariz rings.
M. Azimi, A. Moussavi
doaj  

Twisted vertex operators and unitary Lie algebras [PDF]

open access: yes, 2014
A representation of the central extension of the unitary Lie algebra coordinated with a skew Laurent polynomial ring is constructed using vertex operators over an integral Z_2-lattice.
Chen, Fulin   +3 more
core   +1 more source

On weakly separable polynomials and weakly quasi-separable polynomials over rings [PDF]

open access: yes, 2016
Separable extensions of noncommutative rings have already been studied extensively. Recently, N. Hamaguchi and A. Nakajima introduced the notions of weakly separable extensions and weakly quasiseparable extensions.
Yamanaka, Satoshi
core   +1 more source

A Matrix Ring Description for Cyclic Convolutional Codes

open access: yes, 2007
In this paper, we study convolutional codes with a specific cyclic structure. By definition, these codes are left ideals in a certain skew polynomial ring.
Gluesing-Luerssen, Heide   +1 more
core   +2 more sources

Derivations of skew polynomial rings

open access: yesPublications de l'Institut Mathematique, 2002
Let \(R\) be a commutative ring of characteristic zero, \(d_1,d_2,\dots,d_n\) commuting derivations of \(R\), and \(A_n=R[X_1,X_2,\dots,X_n;d_1,d_2,\dots,d_n]\) a skew polynomial ring in commuting variables \(X_1,X_2,\dots,X_n\) over \(R\). The authors describe derivations of \(A_n\) and examine the lattice of its ideals, under certain conditions.
Hamaguchi, Naoki, Nakajima, Atsushi
openaire   +3 more sources

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