Results 11 to 20 of about 42,411 (276)

Some interactions between Hopf Galois extensions and noncommutative rings

open access: yesUniversitas Scientiarum, 2022
In this paper, our objects of interest are Hopf Galois extensions (e.g., Hopf algebras, Galois field extensions, strongly graded algebras, crossed products, principal bundles, etc.) and families of noncommutative rings (e.g., skew polynomial rings, PBW ...
Armando Reyes, Fabio Calderón
doaj   +1 more source

On (quasi-)morphic property of skew polynomial rings

open access: yesInternational Electronic Journal of Algebra, 2022
. The main objective of this paper is to study (quasi-)morphic property of skew polynomial rings. Let R be a ring, σ be a ring homomorphism on R and n ≥ 1. We show that R inherits the quasi-morphic property from R [ x ; σ ] / ( x n +1 ).
N. Dehghani
semanticscholar   +1 more source

Semifields from skew polynomial rings [PDF]

open access: yesadvg, 2013
Abstract Skew polynomial rings are used to construct finite semifields, following from a construction of Ore and Jacobson of associative division algebras. Johnson and Jha [10] constructed the so-called cyclic semifields, obtained using irreducible semilinear transformations.
LAVRAUW, MICHEL, SHEEKEY, JOHN FRANCIS
openaire   +3 more sources

Galois groups over rational function fields over skew fields

open access: yesComptes Rendus. Mathématique, 2020
Let $H$ be a skew field of finite dimension over its center $k$. We solve the Inverse Galois Problem over the field of fractions $H(X)$ of the ring of polynomial functions over $H$ in the variable $X$, if $k$ contains an ample field.
Alon, Gil   +2 more
doaj   +1 more source

A Survey on Some Algebraic Characterizations of Hilbert’s Nullstellensatz for Non-commutative Rings of Polynomial Type

open access: yesIngeniería y Ciencia, 2020
In this paper we present a survey of some algebraic characterizations of Hilbert’s Nullstellensatz for non-commutative rings of polynomial type. Using several results established in the literature, we obtain a version of this theorem for the skew ...
Armando Reyes   +1 more
doaj   +1 more source

BEBERAPA SIFAT IDEAL GELANGGANG POLINOM MIRING: SUATU KAJIAN PUSTAKA

open access: yesJurnal Matematika, 2012
Let R be a ring with identity 1 and s be an endomorphism of R and d be a left s - derivation . The skew polynomial ring over R in an indeterminate x is: R[x;s ,d ] = { f (x) = anxn +L+ a0 | ai Î R} with xa =s (a)x +d (a) The aim of this research is to ...
AMIR KAMAL AMIR
doaj   +1 more source

The VIT Transform Approach to Discrete-Time Signals and Linear Time-Varying Systems

open access: yesEng, 2021
A transform approach based on a variable initial time (VIT) formulation is developed for discrete-time signals and linear time-varying discrete-time systems or digital filters.
Edward W. Kamen
doaj   +1 more source

Türetim ile Z_(2^s )+uZ_(2^s ) Halkası Üzerinde Aykırı Devirli Kodlar

open access: yesJournal of Advanced Research in Natural and Applied Sciences, 2022
Kodlama teorisinde, lineer kodların özel bir sınıfı olan devirli kodlar ile ilgili araştırmalar büyük ilgi görmektedir. Bu ilginin en önemli nedenlerinden bazıları devirli kodların zengin cebirsel özelliklere sahip olmaları, birçok uygulama alanlarının ...
Basri Çalışkan
doaj   +1 more source

Generalized Skew Polynomial Rings [PDF]

open access: yesTransactions of the American Mathematical Society, 1982
For a totally ordered cancellative semigroup Γ \Gamma , a skew field K K , let K [ Γ ; ϕ ] K[\Gamma ;\phi ] be a skew semigroup ring. If x ∈ Γ , k ∈ K x \in \Gamma ,\,k \in K , then
openaire   +1 more source

The eigenspaces of twisted polynomials over cyclic field extensions

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
Let K be a field and σ an automorphism of K of order n. Employing a nonassociative algebra, we study the eigenspace of a bounded skew polynomial f ∈ K[t; σ].
Owen Adam, Pumplün Susanne
doaj   +1 more source

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