Results 21 to 30 of about 199,462 (178)

Structure of a chain ring as a ring of matrices over a Galois ring

open access: yesAIMS Mathematics, 2022
The structure of a finite chain ring has already been described by Wirt in 1972 and others later. The purpose of this article is to describe another structure of a finite chain ring as a ring of square matrices over Galois ring using the companion matrix
Yousef Alkhamees, Badr Alhajouj
doaj   +1 more source

Polynomial Rings over Goldie Rings

open access: yesJournal of Algebra, 2001
The authors construct for each finite field \(K\) a commutative Goldie \(K\)-algebra \(R\) such that the polynomial ring \(R[X]\) is not a Goldie ring.
Antoine, Ramon, Cedó, Ferran
openaire   +1 more source

A New Algorithm for Solving Ring-LPN with a Reducible Polynomial [PDF]

open access: yes, 2014
The LPN (Learning Parity with Noise) problem has recently proved to be of great importance in cryptology. A special and very useful case is the RING-LPN problem, which typically provides improved efficiency in the constructed cryptographic primitive.
Guo, Qian   +2 more
core   +1 more source

Differential polynomial rings over rings satisfying a polynomial identity

open access: yesJournal of Algebra, 2015
Let $R$ be a ring satisfying a polynomial identity and let $ $ be a derivation of $R$. We show that if $N$ is the nil radical of $R$ then $ (N)\subseteq N$ and the Jacobson radical of $R[x; ]$ is equal to $N[x; ]$. As a consequence, we have that if $R$ is locally nilpotent then $R[x; ]$ is locally nilpotent.
Bell, Jason P.   +2 more
openaire   +3 more sources

Method of restoring multivariable Boolean function from its derivative

open access: yesAdvanced Engineering Research, 2017
Introduction. Boolean functions of several variables are of paramount importance in the coding theory and cryptography. The compositions of these functions are used in a set of the symmetric cryptosystems; therewith, some error-control codes, such as ...
Alexander V. Mazurenko   +1 more
doaj   +1 more source

Multiplicity of the saturated special fiber ring of height two perfect ideals [PDF]

open access: yes, 2019
Let $R$ be a polynomial ring and $I \subset R$ be a perfect ideal of height two minimally generated by forms of the same degree. We provide a formula for the multiplicity of the saturated special fiber ring of $I$. Interestingly, this formula is equal to
Cid-Ruiz, Yairon
core   +4 more sources

Strongly stable ideals and Hilbert polynomials [PDF]

open access: yes, 2018
The \texttt{StronglyStableIdeals} package for \textit{Macaulay2} provides a method to compute all saturated strongly stable ideals in a given polynomial ring with a fixed Hilbert polynomial.
Alberelli, Davide, Lella, Paolo
core   +2 more sources

Reversible skew laurent polynomial rings and deformations of poisson automorphisms [PDF]

open access: yes, 2009
A skew Laurent polynomial ring S = R[x(+/- 1); alpha] is reversible if it has a reversing automorphism, that is, an automorphism theta of period 2 that transposes x and x(-1) and restricts to an automorphism gamma of R with gamma = gamma(-1).
DAVID A. JORDAN   +7 more
core   +2 more sources

When is R[x] a principal ideal ring?

open access: yesRevista Integración, 2018
Because of its interesting applications in coding theory, cryptography, and algebraic combinatoris, in recent decades a lot of attention has been paid to the algebraic structure of the ring of polynomials R[x], where R is a finite commutative ring with ...
Henry Chimal-Dzul, C. A. López-Andrade
doaj   +1 more source

On Nil-Symmetric Rings

open access: yesJournal of Mathematics, 2014
The concept of nil-symmetric rings has been introduced as a generalization of symmetric rings and a particular case of nil-semicommutative rings. A ring R is called right (left) nil-symmetric if, for a,b,c∈R, where a,b are nilpotent elements, abc=0  (cab=
Uday Shankar Chakraborty, Krishnendu Das
doaj   +1 more source

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