Results 21 to 30 of about 199,462 (178)
Structure of a chain ring as a ring of matrices over a Galois ring
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
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]
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
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
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
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Multiplicity of the saturated special fiber ring of height two perfect ideals [PDF]
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]
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]
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?
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
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
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