Browsing by Author "Koç E."
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Lie ideals and (?,?)derivations of *prime rings
ur Rehman N.; Gölbaşı Ö.; Koç E. (2013)Let (R, *) be a 2torsion free *prime ring with involution *, L ? {0} be a *Lie ideal of R. An additive mapping d: R ? R is called an (?,?)derivation of R such that d(xy) = d(x)?(y) + ?(x)d(y). In the present paper, we ... 
A note on (?, ?)derivations of rings with involution
Koç E.; Gölbaşi O. (2014)Let R be a 2torsion free simple *ring and D : R ? R be an additive mapping satisfiying D(xx*)= D(x)?(x*)+?(x)D(x*), for all x ? R. Then D is a (?, ?)derivation of R or R is S4 ring. Also, if R is a 2torsion free semiprime ... 
Notes on generalized (?, ?)derivation
Gölbaşi O.; Koç E. (2010)Let R be a prime ring with charR ? 2 and let ?, ? be automorphisms of R. An additive mapping f: R ? R is called a generalized (?, ?)derivation if there exists a (?, ?)derivation d: R ? R such that f(xy) = f(x)?(y) + ... 
Notes on generalized Jordan (?, ?)*  Derivations of semiprime rings with involution
Let R be a 6torsion free semiprime *ring, ? an endomorphism of R, ? an epimorphism of R and f: R ? R an additive mapping. In this paper we proved the following result: f is a generalized Jordan (?, ?)* derivation if and ... 
On rings of quotients of semiprime ?rings
Koç E.; Gölbaşi O. (2012)In this paper, we investigate the rings of quotients of a semiprime ?ring. © 2012 Miskolc University Press. 
Some commutativity theorems of prime rings with generalized (?, ?)derivation
Gölbaşi Ö.; Koç E. (2011)In this paper, we extend some well known results concerning generalized derivations of prime rings to a generalized (?, ?)derivation. © 2011 The Korean Mathematical Society. 
Some results on generalized (?, ?)derivations in ?prime rings
Chaudhry M.A.; Gölbaşi Ö.; Koç E. (2015)We extend some well known commutativity results concerning a nonzero square closed ?Lie ideal and generalized (?, ?)derivations of ?prime rings. © 2015 Muhammad Anwar Chaudhry et al.