Results 41 to 50 of about 2,745 (167)

Strongly semiprime rings [PDF]

open access: yesPacific Journal of Mathematics, 1975
For a ring with 1, we show that every proper kernel functor generates a proper torsion radical if and only if the ring is a finite subdirect product of strongly prime (also called ATF) rings. This is equivalent to every essential right ideal containing a finite set whose right annihilator is zero.
openaire   +3 more sources

On rings of quotients of semiprime $\Gamma$-rings [PDF]

open access: yesMiskolc Mathematical Notes, 2012
WOS ...
Koc, Emine, Golbasi, Oznur
openaire   +3 more sources

The hulls of semiprime rings [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1975
Each semiprime ring admits a unique projectable, strongly projectable, laterally complete and orthocomplete hull. Almost all of the theory for X–hulls of lattice-ordered groups in Paul Conrad, “The hulls of representable l-groups and f-rings”, J. Austral. Math. Soc. 16 (1973), 385–415, has a counterpart for semiprime rings.
openaire   +3 more sources

On Semiprime Noetherian PI-Rings [PDF]

open access: yes, 2000
Let R be a semiprime Noetherian PI-ring and Q(R) the semisimple Artinian ring of fractions of R. We shall prove the following conditions are equivalent: (1) the Krull dimention of R is at most one, (2) Any ring between R and Q(R) is again right ...
Chiba, Katsuo
core   +1 more source

Semiprime FDI-rings [PDF]

open access: yesJournal of Applied Mathematics and Computational Mechanics, 2014
In this paper we present some results for FDI-rings, i.e. rings with a complete set of pairwise orthogonal primitive idempotents. We consider the nilpotency index of ideals and give its upper band for ideals in some classes of rings. We also give a new proof of a criterion of semiprime FDI-rings to be prime.
openaire   +3 more sources

Classical quotient rings of generalized matrix rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
An associative ring R with identity is a generalized matrix ring with idempotent set E if E is a finite set of orthogonal idempotents of R whose sum is 1.
David G. Poole, Patrick N. Stewart
doaj   +1 more source

On Semiprime P.I. Rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
The main results proved in this paper are that if R R is a semiprime ring satisfying a polynomial identity then (1) the maximal right quotient ring of R R is also P.I. and (2) every essential one-sided ideal of R R contains an essential two-sided ideal of R R .
openaire   +2 more sources

Remarks on derivations on semiprime rings [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
We prove that a semiprime ring R must be commutative if it admits a derivation d such that (i) xy + d(xy) = yx + d(yx) for all x, y in R, or (ii) xy − d(xy) = yx − d(yx) for all x, y in R. In the event that R is prime, (i) or (ii) need only be assumed for all x, y in some nonzero ideal of R.
Mohamad Nagy Daif, Howard E. Bell
openaire   +2 more sources

Commutativity results for semiprime rings with derivations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
We extend a result of Herstein concerning a derivation d on a prime ring R satisfying [d(x),d(y)]=0 for all x,y∈R, to the case of semiprime rings. An extension of this result is proved for a two-sided ideal but is shown to be not true for a one-sided ...
Mohammad Nagy Daif
doaj   +1 more source

G-algebras, twistings, and equivalences of graded categories [PDF]

open access: yes, 2007
Given Z-graded rings A and B, we study when the categories gr-A and gr-B are equivalent. We relate the Morita-type results of Ahn-Marki and del Rio to the twisting systems introduced by Zhang.
Sierra, Susan J.
core   +4 more sources

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