Results 11 to 20 of about 2,654 (260)

Stable range conditions for abelian and duo rings

open access: yesМатематичні Студії, 2022
The article deals with the following question: when does the classical ring of quotients of a duo ring exist and idempotents in the classical ring of quotients $Q_{Cl} (R)$ are there idempotents in $R$?
A. A. Dmytruk   +2 more
doaj   +1 more source

On Local Rings [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2014
A ring R is called local ring if it has exactly one maximal ideal. In this paper, we introduce some characterization and basic properties of this ring. Also, we studied the relation between local rings and Von Neumann regular rings and strongly regular ...
Zubayda Ibraheem, Anees Fthee
doaj   +1 more source

Chromatic Number and some Properties of Pseudo-Von Neumann Regular graph of Cartesian Product of Rings

open access: yesTikrit Journal of Pure Science, 2020
Let R be a commutative ring, the Pseudo – Von Neumann  regular graph of the ring R is define as a graph whose vertex set consists of all elements of R and any two distinct vertices a and b are adjacent if and only if , this graph is denoted by P-VG(R ...
Nermen J. Khalel, Nabeel E. Arif
doaj   +1 more source

On Strongly 𝝅-regular Modules

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
In this article, we introduce the notion of strongly π-regular module which is a generalization of von Neumann regular module in the sense [13]. Let A be a commutative ring with 1≠0 and X a multiplication A-module. X is called a strongly π-regular module
Suat Koç
doaj   +1 more source

Stationary Mach Configurations with Pulsed Energy Release on the Normal Shock

open access: yesFluids, 2021
We obtained a theoretical analysis of stationary Mach configurations of shock waves with a pulsed energy release at the main (normal) shock and a corresponding change in gas thermodynamic properties.
Mikhail V. Chernyshov   +3 more
doaj   +1 more source

Classification of Boolean algebras through von Neumann regular $\mathcal{C}^{\infty}-$rings [PDF]

open access: yesCategories and General Algebraic Structures with Applications
In this paper, we introduce the concept of a ``von Neumann regular $\mathcal{C}^{\infty}$-ring", which is a model for a specific equational theory.
Jean Berni, Hugo Mariano
doaj   +1 more source

On Von Neumann Regular Rings [PDF]

open access: yesCanadian Mathematical Bulletin, 1974
Recently, in the Research Problems of Canadian Mathematical Bulletin, Vol. 14, No. 4, 1971, there appeared a problem which asks “Is a prime Von Neumann regular ring pimitive?” While we are not able to settle this question one way or the other, we prove that in a Von Neumann regular ring, there is a maximal annihilator right ideal if and only if there ...
openaire   +3 more sources

ASYMMETRICAL INTERFERENCE OF COUNTER OBLIQUE SHOCK WAVES [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
Subject of Study. The paper deals with data on the interference of shock waves with different intensity and slope angles to the flow of them. This problem is related to the problem of designing air intakes to the internal compression and detonation ...
P. V. Bulat   +2 more
doaj   +1 more source

On von Neumann regularity of cellular automata

open access: yesNatural Computing, 2023
AbstractWe show that a cellular automaton on a one-dimensional two-sided mixing subshift of finite type is a von Neumann regular element in the semigroup of cellular automata if and only if it is split epic onto its image in the category of sofic shifts and block maps.
openaire   +2 more sources

Regularizing divergences in the von Neumann entropy

open access: yesJournal of Mathematical Physics, 2002
We study the decoherence process of a harmonic oscillator in a dissipative environment by considering the von Neumann entropy. Derivatives of the von Neumann entropy around the initial time exhibit divergences when the system is initially in a pure state.
Retamal, JC, Vergara, L
openaire   +3 more sources

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