Results 91 to 100 of about 1,168,669 (179)
If M is a torsion-free module over an integral domain, then we show that for each submodule N of M the envelope EM (N ) of N in M is an essential extension of N. In particular, if N is divisible then EM (N ) = N .
S.C. Lee, R. Varmazyar
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A Some Results on Double Cenralizer for Prime and Semiprime Г- rings
The goal of this work, is to examine the concept of a double centralizer, and double Jordan centralizer on prime and semiprime Г-rings, this is done by studying examples, remarks and results related to that concepts and looking for the ...
Aya Hussein +3 more
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Derivations of higher order in semiprime rings
Let R be a 2-torsion free semiprime ring with derivation d. Supposed d2n is a derivation of R, where n is a positive integer. It is shown that if R is (4n−2)-torsion free or if R is an inner derivation of R, then d2n−1=0.
Jiang Luh, Youpei Ye
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SKEW POLYNOMIAL RINGS OVER SEMIPRIME RINGS [PDF]
Chan-Yong Hong, Nam Kyun Kim, Yang Lee
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(ϕ, φ)-derivations on semiprime rings and Banach algebras [PDF]
Bilal Ahmad Wani
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Source of semiprimeness of $\ast$-prime rings
This study constructs a structure $S_{R}^{\ast}$ that had never been studied before and obtained new results by defining a subset $S_{R}^{\ast}$ of $R$ as$S_{R}^{\ast}=\left\{ \left.
Barış Albayrak +2 more
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A note on semiprime rings with derivation
Let R be a 2-torsion free semiprime ring, I a nonzero ideal of R, Z the center of R and D:R→R a derivation. If d[x,y]+[x,y]∈Z or d[x,y]−[x,y]∈Z for all x, y∈I, then R is commutative.
Motoshi Hongan
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Congruence Extensions in Congruence–Modular Varieties
We investigate from an algebraic and topological point of view the minimal prime spectrum of a universal algebra, considering the prime congruences with respect to the term condition commutator.
George Georgescu +2 more
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Generalized Derivations on Power Values of Lie Ideals in Prime and Semiprime Rings
Let R be a 2-torsion free ring and let L be a noncentral Lie ideal of R, and let F:R→R and G:R→R be two generalized derivations of R. We will analyse the structure of R in the following cases: (a) R is prime and F(um)=G(un) for all u∈L and fixed ...
Vincenzo De Filippis +2 more
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Goldie criteria for some semiprime rings [PDF]
Ken A. Brown, B. A. F. Wehrfritz
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