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Formalized linear algebra over Elementary Divisor Rings in Coq [PDF]

open access: yesLogical Methods in Computer Science, 2016
This paper presents a Coq formalization of linear algebra over elementary divisor rings, that is, rings where every matrix is equivalent to a matrix in Smith normal form.
Guillaume Cano   +4 more
doaj   +7 more sources

The Ring Homomorphisms of Matrix Rings over Skew Generalized Power Series Rings

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2021
Let  M_n (R_1 [[S_1,≤_1,ω_1]]) and M_n (R_2 [[S_2,≤_2,ω_2]]) be a matrix rings over skew generalized power series rings, where R_1,R_2 are commutative rings with an identity element, (S_1,≤_1 ),(S_2,≤_2 ) are strictly ordered monoids, ω_1:S_1→End(R_1 ),〖
Ahmad Faisol, Fitriani Fitriani
doaj   +1 more source

Formal Matrix Rings: Isomorphism Problem

open access: yesMathematics, 2023
We consider the isomorphism problem for formal matrix rings over a given ring. Principal factor matrices of such rings play an important role in this case.
Piotr Krylov, Askar Tuganbaev
doaj   +1 more source

ON THE REFINEMENT OF THE UNIT AND UNITARY CAYLEY GRAPHS OF RINGS [PDF]

open access: yesJournal of Algebraic Systems, 2019
Let $R$ be a ring (not necessarily commutative) with nonzero identity. We define $Gamma(R)$ to be the graph with vertex set $R$ in which two distinct vertices $x$ and $y$ are adjacent if and only if there exist unit elements $u,v$ of $R$ such that $x+uyv$
M. Rezagholibeigi, A. R. Naghipour
doaj   +1 more source

Relative Gorenstein Dimensions over Triangular Matrix Rings

open access: yesMathematics, 2021
Let A and B be rings, U a (B,A)-bimodule, and T=A0UB the triangular matrix ring. In this paper, several notions in relative Gorenstein algebra over a triangular matrix ring are investigated.
Driss Bennis   +3 more
doaj   +1 more source

Idempotents in Matrix Rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
Let R be a commutative, von Neumann regular ring and M n ( R ) {M_n}(R) the ring of n × n n \times n matrices over R. What are the idempotents in M n (
Barnett, Christopher, Camillo, Victor
openaire   +1 more source

On the idempotent and nilpotent sum numbers of matrices over certain indecomposable rings and related concepts

open access: yesМатематичні Студії, 2021
We investigate a few special decompositions in arbitrary rings and matrix rings over indecomposable rings into nilpotent and idempotent elements. Moreover, we also define and study the nilpotent sum trace number of nilpotent matrices over an arbitrary ...
P.V. Danchev
doaj   +1 more source

A First Study of Urginea maritima Rings: A Case Study from Southern Jordan

open access: yesLand, 2022
Vegetation rings are a common pattern in water-limited environments and mostly occur in clonal plants. This study presents, for the first time, rings of the geophyte species Urginea maritima. The rings, typically 40–90 cm in diameter, are abundant in the
Hezi Yizhaq   +2 more
doaj   +1 more source

Matrix Diophantine equations over quadratic rings and their solutions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
The method for solving the matrix Diophantine equations over quadratic rings is developed. On the basic of the standard form of matrices over quadratic rings with respect to $(z,k)$-equivalence previously established by the authors, the matrix ...
N.B. Ladzoryshyn   +2 more
doaj   +1 more source

Images of formal matrices of elements of matrix groups over associative rings

open access: yesНауковий вісник Ужгородського університету. Серія: Математика і інформатика, 2020
The paper substantiates the image by formal matrices of some elements of linear groups over associative rings by using the properties of redundant and fixed modules.
В. М. Петечук   +1 more
doaj   +1 more source

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