Results 21 to 30 of about 19,413 (252)

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

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

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  

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

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: yesJournal of Algebra, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Osborn, J.M., Passman, D.S.
openaire   +2 more sources

Skew Polynomial Rings: the Schreier Technique [PDF]

open access: yesActa Mathematica Vietnamica, 2022
AbstractSchreier bases are introduced and used to show that skew polynomial rings are free ideal rings, i.e., rings whose one-sided ideals are free of unique rank, as well as to compute a rank of one-sided ideals together with a description of corresponding bases. The latter fact, a so-called Schreier-Lewin formula (Lewin Trans. Am. Math.
openaire   +1 more source

Some algebras similar to the 2x2 Jordanian matrix algebras

open access: yes, 2016
The impetus for this study is the work of Dumas and Rigal on the Jordanian deformation of the ring of coordinate functions on $2\times 2$ matrices. We are also motivated by current interest in birational equivalence of noncommutative rings.
Gaddis, Jason, Price, Kenneth L.
core   +1 more source

Computation of nonlinear eigenvalues based on the Ore determinant: preliminary results [PDF]

open access: yesProceedings of the Estonian Academy of Sciences
The concept of eigenvalues has recently been generalized for nonlinear systems, but the method to find them is missing. Unlike the linear case, now one has to deal with non-commutative polynomials from the Ore ring. In the paper, the Ore determinant of a
Miroslav Halás   +3 more
doaj   +1 more source

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