Results 71 to 80 of about 320 (83)
Pair-induced spectral changes and variability in compact X-ray sources [PDF]
, 1986 Inverse Compton scattering of ultraviolet photons by GeV electrons produces γ-rays which in turn create electron–positron pairs if the source is sufficiently compact.
Blandford, R. D. +4 more
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Notes on slender prime rings [PDF]
, 1996 summary:If $R$ is a prime ring such that $R$ is not completely reducible and the additive group $R(+)$ is not complete, then $R$ is ...
El Bashir, Robert, Kepka, Tomáš
core
Generalization of generalized derivations acting as homomorphisms or anti-homomorphisms with central values on Lie ideals in prime rings [PDF]
, 2015 Dhara, Basudeb +2 more
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Additive mappings on Banach *-algebras
International Journal of Algebra, 2019Let A be a Banach ∗-algebra over the field of real or complex field. The objective of the present paper is to discribe the structure of A involving additive mappings.
A. Khan, H. Alhazmi
semanticscholar +1 more source
, 2015
Let R be a semiprime ring with center Z.R/. A mapping F W R ! R is called a generalized derivation if there exists a derivation d WR!R such that F.xy/D F.x/yCxd.y/ holds for all x;y 2 R.
B. Dhara, S. Kar, Krishna Gopal Pradahan
semanticscholar +1 more source
Let R be a semiprime ring with center Z.R/. A mapping F W R ! R is called a generalized derivation if there exists a derivation d WR!R such that F.xy/D F.x/yCxd.y/ holds for all x;y 2 R.
B. Dhara, S. Kar, Krishna Gopal Pradahan
semanticscholar +1 more source
On generalized derivations and commutativity of prime rings with involution
, 2017Let R be a ring with involution ′∗′. A map δ of the ring R into itself is called a derivation if δ(xy) = δ(x)y + xδ(y) for all x, y ∈ R. An additive map F : R → R is called a generalized derivation on R if F(xy) = F(x)y + xδ(y) for all x, y ∈ R ...
Shakir Ali, H. Alhazmi
semanticscholar +1 more source
A note on multiplicative (generalized)-derivations in prime rings
, 2016Let R be a prime ring, 0 6= a ∈ R and I a nonzero ideal of R. A map F : R → R is called a multiplicative (generalized)-derivation if F (xy) = F (x)y + xg(y) fulfilled for all x, y ∈ R where g : R→ R is any map(not necessarily derivation).
H. Alhazmi
semanticscholar +1 more source
Skew-Commuting Mappings on Semiprime and Prime Rings
, 2015In this paper we study some maps which are skew-commuting on rings. Also we present some results concerning derivations in generalized case. 2000 AMS Classification: 16N60, 16W25.
A. Najati
semanticscholar +1 more source
On derivations in prime and semiprime rings with Banach algebras
, 2018In this article we study certain differential identities in prime and semiprime rings. In particular, we prove if a prime rings satisfies certain differential identity on a nonzero ideal of a ring R, then R is commutative.
Mohammad Shadab Khan, M. Raza, N. Rehman
semanticscholar +1 more source
, 2016
Let R be a ring with identity element and M be a right R-module. We say that M is weakly endo-prime if annS(N) is a prime ideal in the ring S = End(MR), for any nonzero fully invariant submodule N of M . In this paper we study this notion and obtain some
R. Beyranvand, P. K. Beiranvand
semanticscholar +1 more source
Let R be a ring with identity element and M be a right R-module. We say that M is weakly endo-prime if annS(N) is a prime ideal in the ring S = End(MR), for any nonzero fully invariant submodule N of M . In this paper we study this notion and obtain some
R. Beyranvand, P. K. Beiranvand
semanticscholar +1 more source