Results 31 to 40 of about 97,313 (257)

The Ideal Intersection Property for Groupoid Graded Rings [PDF]

open access: yes, 2010
We show that if a groupoid graded ring has a certain nonzero ideal property, then the commutant of the center of the principal component of the ring has the ideal intersection property, that is it intersects nontrivially every nonzero ideal of the ring ...
Caenepeel S.   +25 more
core   +1 more source

Commutativity and structure of rings with commuting nilpotents [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
Let R be a ring and let N denote the set of nilpotent elements of R. Let Z denote the center of R. Suppose that (i) N is commutative, (ii) for every x in R there exists x′ϵ < x> such that x − x2x′ϵN, where <x> denotes the subring generated by x, (iii) for every x, y in R, there exists an integer n = n(x, y) ≥ 1 such that both (xy) n − (yx ...
Hazar Abu-Khuzam, Adil Yaqub
openaire   +3 more sources

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

Polynomial Rings over Pseudovaluation Rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
Let R be a ring. Let σ be an automorphism of R. We define a σ-divided ring and prove the following. (1) Let R be a commutative pseudovaluation ring such that x∉P for any P∈Spec(R[x,σ]) . Then R[x,σ] is also a pseudovaluation ring.
V. K. Bhat
doaj   +1 more source

Classifying birationally commutative projective surfaces [PDF]

open access: yes, 2009
Let R be a noetherian connected graded domain of Gelfand-Kirillov dimension 3 over an uncountable algebraically closed field. Suppose that the graded quotient ring of R is a skew-Laurent ring over a field; we say that R is a birationally commutative ...
Sierra, Susan J.
core   +1 more source

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

Valuations on a Commutative Ring [PDF]

open access: yesProceedings of the American Mathematical Society, 1969
By a valuation on a commutative ring R, we mean a pair (v, I), where r is an ordered (mult) group with a zero adjoined and v is a map of R onto r satisfying (1) v(xy) =v(x)v(y) for all x, yER, (2) v(x+y)?
openaire   +1 more source

On commutators and derivations in rings

open access: yesJournal of Algebra, 2004
AbstractWe consider the problem when the product of certain higher commutators arising from a fixed element in a ring lies in the ideal generated by some power of this element. The result which we obtain is applied to the study of (generalized) derivations in rings and (Banach) algebras.
Matej Brešar   +2 more
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

A Commutativity Theorem for Rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
Let R R be any associative ring. Suppose that for every pair ( a 1 , a 2 ) ∈ R × R ({a_1},{a_2}) \in R \times R there exists a pair (
openaire   +2 more sources

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