Results 21 to 30 of about 91,509 (288)

The commutative core of a Leavitt path algebra [PDF]

open access: yes, 2018
For any unital commutative ring $R$ and for any graph $E$, we identify the commutative core of the Leavitt path algebra of $E$ with coefficients in $R$, which is a maximal commutative subalgebra of the Leavitt path algebra.
Canto, Cristóbal Gil   +1 more
core   +2 more sources

Characterization of fuzzy neighborhood commutative division rings II

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
In [4] we produced a characterization of fuzzy neighborhood commutative division rings; here we present another characterization of it in a sense that we minimize the conditions so that a fuzzy neighborhood system is compatible with the commutative ...
T. M. G. Ahsanullah, Fawzi A. Al-Thukair
doaj   +1 more source

Locally Noetherian Commutative Rings [PDF]

open access: yesTransactions of the American Mathematical Society, 1971
This paper centers around the theorem that a commutative ring R R is noetherian if every R P , P {R_P},P prime, is noetherian and every finitely generated ideal of R R has only finitely many weak-Bourbaki associated primes. A more
Heinzer, William, Ohm, Jack
openaire   +2 more sources

Elementary reduction of matrices over Bezout ring with stable range 1 (in Ukrainian) [PDF]

open access: yesМатематичні Студії, 2012
We prove that a commutative Bezout ring with stable range 1 is a ring with elementary reduction of matrices and that every singular matrice over commutative Bezout ring with stable range 1 is products of idempotent matrices.
O. M. Romaniv
doaj  

Triple Derivations and Triple Homomorphisms of Perfect Lie Superalgebras [PDF]

open access: yes, 2016
In this paper, we study triple derivations and triple homomorphisms of perfect Lie superalgebras over a commutative ring $R$. It is proved that, if the base ring contains $\frac{1}{2}$, $L$ is a perfect Lie superalgebra with zero center, then every ...
Chen, Liangyun, Ma, Yao, Zhou, Jia
core   +1 more source

Expansivity on commutative rings [PDF]

open access: yesTopology and its Applications, 2020
In this article we extend the notion of expansivity from topological dynamics to automorphisms of commutative rings with identity. We show that a ring admits a 0-expansive automorphism if and only if it is a finite product of local rings. Generalizing a well known result of compact metric spaces, we prove that if a ring admits a positively expansive ...
Alfonso Artigue, Mariana Haim
openaire   +2 more sources

Generalized periodic and generalized Boolean rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We prove that a generalized periodic, as well as a generalized Boolean, ring is either commutative or periodic. We also prove that a generalized Boolean ring with central idempotents must be nil or commutative. We further consider conditions which imply
Howard E. Bell, Adil Yaqub
doaj   +1 more source

Pure Graph of a Commutative Ring

open access: yesWasit Journal for Pure Sciences, 2023
A new definition of a graph called Pure graph of a ring denote Pur(R) was presented , where the vertices of the graph represent the elements of R such that there is an edge between the two vertices ???? and ???? if and only if ????=???????? ???????? ????
Nermen J.Khalel   +2 more
doaj   +1 more source

Subrings of I-rings and S-rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
Let R be a non-commutative associative ring with unity 1≠0, a left R-module is said to satisfy property (I) (resp. (S)) if every injective (resp. surjective) endomorphism of M is an automorphism of M.
Mamadou Sanghare
doaj   +1 more source

Homological invariants associated to semi-dualizing bimodules [PDF]

open access: yes, 2005
Cohen-Macaulay dimension for modules over a commutative noetherian local ring has been defined by A. A. Gerko. That is a homological invariant sharing many properties with projective dimension and Gorenstein dimension.
Araya, Tokuji   +2 more
core   +2 more sources

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