Results 41 to 50 of about 32,058 (259)

Self-injective von Neumann regular rings and Köthe's conjecture [PDF]

open access: yesJournal of Pure and Applied Algebra, 2021
One of the many equivalent formulation of the K the's conjecture is the assertion that there exists no ring which contains two nil right ideals whose sum is not nil. We discuss several consequences of an observation that if the Koethe conjecture fails then there exists a counterexample in the form of a countable local subring of a suitable self ...
Kálnai, Peter, Žemlička, Jan
openaire   +2 more sources

Rings Over Which Cyclics are Direct Sums of Projective and CS or Noetherian [PDF]

open access: yes, 2009
R is called a right WV -ring if each simple right R-module is injective relative to proper cyclics. If R is a right WV -ring, then R is right uniform or a right V -ring.
A. Leroy   +4 more
core   +4 more sources

A note on a generalization of injective modules

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
As a proper generalization of injective modules in term of supplements, we say that a module $M$ has the property (ME) if, whenever $M\subseteq N$, $M$ has a supplement $K$ in $N$, where $K$ has a mutual supplement in $N$. In this study, we obtain that $(
B.N. Türkmen, E. Türkmen
doaj   +1 more source

On von Neumann regular rings - II.

open access: yesMATHEMATICA SCANDINAVICA, 1976
As in other papers of this long series [for Part X see Collect. Math. 34, 81-94 (1983; Zbl 0544.16006), Part XIII see Ann. Univ. Ferrara, Nuova Ser., Sez. VII 31, 49-61 (1985; Zbl 0588.16006)], the author considers generalizations of concepts such as regularity and injectivity.
openaire   +16 more sources

Vertex rings and their Pierce bundles

open access: yes, 2017
In part I we introduce vertex rings, which bear the same relation to vertex algebras (or VOAs) as commutative, associative rings do to commutative, associative algebras over the complex numbers.
Mason, Geoffrey
core   +1 more source

Gorenstein Von Neumann regular rings

open access: yes, 2009
In this paper, we study the rings with zero Gorenstein weak dimensions, which we call them Gorenstein Von Neumann regular rings.
Mahdou, Najib   +2 more
openaire   +2 more sources

Polynomial Rings Over a Commutative von Neumann Regular Ring [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
It is shown that the annihilator of each finitely generated ideal of R [ { X λ } λ ∈ Λ ] R[{\{ {X_\lambda }\} _{\lambda \in \Lambda ...
openaire   +1 more source

Cyclically presented modules, projective covers and factorizations

open access: yes, 2013
We investigate projective covers of cyclically presented modules, characterizing the rings over which every cyclically presented module has a projective cover as the rings $R$ that are Von Neumann regular modulo their Jacobson radical $J(R)$ and in which
Facchini, Alberto   +2 more
core   +1 more source

Moore-Penrose invertibility in involutory rings: the case aa+=bb+ [PDF]

open access: yes, 2010
In this article, we consider Moore-Penrose invertibility in rings with a general involution. Given two von Neumann regular elements a, b in a general ring with an arbitrary involution, we aim to give necessary and sufficient conditions to aa† = bb†. As a
C. Mendes Araújo   +2 more
core   +1 more source

On S-2-absorbing submodules and vn-regular modules

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
Let R be a commutative ring and M an R-module. In this article, we introduce the concept of S-2-absorbing submodule. Suppose that S ⊆ R is a multiplicatively closed subset of R.
Ulucak Gülşen, Tekir Ünsal, Koç Suat
doaj   +1 more source

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