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Classification of chain rings

open access: yesAIMS Mathematics, 2022
An associative Artinian ring with an identity is a chain ring if its lattice of left (right) ideals forms a unique chain. In this article, we first prove that for every chain ring, there exists a certain finite commutative chain subring which ...
Yousef Alkhamees, Sami Alabiad
doaj   +2 more sources

Constacyclic codes over finite local Frobenius non-chain rings of length 5 and nilpotency index 4

open access: diamondAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
The family of finite local Frobenius non-chain rings of length 5 and nilpotency index 4 is determined, as a by-product all finite local Frobenius non-chain rings with p5 elements (p a prime) and nilpotency index 4 are given.
Castillo-Guillén C. A.   +1 more
doaj   +2 more sources

Nil Rings Satisfying Certain Chain Conditions [PDF]

open access: bronzeCanadian Journal of Mathematics, 1964
In general, given the fact that every element in a ring is nilpotent, one cannot conclude that the ring itself is nilpotent. However, there are theorems which do assert that, in the presence of certain side conditions, nil implies nilpotent. We shall prove some theorems of this nature here; among them they contain or subsume many of the earlier known ...
Herstein, I. N., Small, Lance
openaire   +3 more sources

Descending chain conditions for graded rings [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1992
It is proved that if R R is a perfect (resp. Artinian) strongly graded ring whose ground subring is, modulo its Jacobson radical, a finite direct product of finite-dimensional simple algebras over (nondenumerable) algebraically closed fields, then the grading group cannot contain an infinite abelian subgroup (resp.
Manuel Saorı́n
openaire   +3 more sources

On Hamming Distance Distributions of Repeated-Root Cyclic Codes of Length 5ps Over Fp m + uFp m

open access: yesIEEE Access, 2022
Let $p\not =5$ be any odd prime. Using the algebraic structures of all cyclic codes of length $5p^{s}$ over the finite commutative chain ring ${\mathcal{ R}}=\mathbb F_{p^{m}}+u\mathbb F_{p^{m}}$ , in this paper, the exact values of Hamming ...
Hai Q. Dinh   +3 more
doaj   +1 more source

On Symbol-Pair Distance of a Class of Constacyclic Codes of Length 3ps over Fpm+uFpm

open access: yesAxioms, 2023
Let p≠3 be any prime. In this paper, we compute symbol-pair distance of all γ-constacyclic codes of length 3ps over the finite commutative chain ring R=Fpm+uFpm, where γ is a unit of R which is not a cube in Fpm.
Hai Q. Dinh   +2 more
doaj   +1 more source

The Structure of Local Rings with Singleton Basis and Their Enumeration

open access: yesMathematics, 2022
A local ring is an associative ring with unique maximal ideal. We associate with each Artinian local ring with singleton basis four invariants (positive integers) p,n,s,t.
Yousef Alkhamees, Sami Alabiad
doaj   +1 more source

Extensions of chain rings [PDF]

open access: yesMathematische Zeitschrift, 1984
Die Verff. studieren nullteilerfreie Ringe, deren Rechtsidealverband durch Inklusion linear geordnet ist (rechte Kettenringe). Genauer untersuchen sie folgende Konstruktion: \(R_ 0\) sei ein rechter Kettenring, \(\sigma\) ein Monomorphismus und \(\delta\) eine \(\sigma\)- Derivation. Im Polynomring \(R_ 0[x,\sigma,\delta]\) mit \(xa=\sigma(a)x+\delta(a)
Törner, Günter, Brungs, Hans-Heinrich
openaire   +1 more source

On Symbol-Triple Distance of a Class of Constacyclic Codes of Length 3ps Over Fpm + uFpm

open access: yesIEEE Access, 2023
Let $p\not =3$ be any prime. In this paper, we completely determine symbol-triple distance of all $\gamma $ -constacyclic codes of length $3p^{s}$ over the finite commutative chain ring ${\mathcal{ R}}=\mathbb F_{p^{m}}+u\mathbb F_{p^{m}}$ , where
Hai Q. Dinh   +3 more
doaj   +1 more source

On classification of finite commutative chain rings

open access: yesAIMS Mathematics, 2022
Let $ R $ be a finite commutative chain ring with invariants $ p, n, r, k, m. $ It is known that $ R $ is an extension over a Galois ring $ GR(p^n, r) $ by an Eisenstein polynomial of some degree $ k $.
Sami Alabiad, Yousef Alkhamees
doaj   +1 more source

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