Abstract
Let R be a ring, a,b ∈ R, (D,α) and (G,β) be two generalized derivations of R. It is proved that if aD(x) = G(x)b for all x ∈ R, then one of the following possibilities holds: (i) If either a or b is contained in C, then α = β = 0 and there exist p,q∈Q r (RC) such that D(x) = px and G(x) = qx for all x∈R; (ii) If both a and b are contained in C, then either a = b = 0 or D and G are C -linearly dependent; (iii) If neither a nor b is contained in C, then there exist p,q∈Q r (RC) and w∈Q r (R) such that α(x) = [q,x]_and β(x) = [x,p]_for all x∈R, whence D(x) = wx−xq and G(x) = xp + avx with v∈ C and aw−pb = 0.
Similar content being viewed by others
References
Posner H C. Derivations in prime rings[J]. Proc Amer Math Soc, 1957, 8: 1093–1100.
Herstein I N. A note on derivations[J]. Canad Math Bull, 1978, 21(3): 369–370.
Lanski C. A note on GPIS and their coefficients[J]. Proc Amer Math Soc, 1986, 98(1): 17–19.
Lanski C. Differential identities, Lie ideals, and Posner’s Theorems[J]. Pac J Math, 1988, 134(2): 275–297.
Passman H. Infinite Crossed Products[M]. Academic Press, San Diego, 1989.
Lanski C. Derivations with nilpotent values on left ideals[ J]. Comm Algebra, 1994, 22(4): 1305–1320.
Beidar K I, Bresar M, Chebotar M A. Functional identities with r-indenpendent coefficients[J]. Comm Algebra, 2002, 30(12): 5725–5755.
Bresar M. Centralizing mappings and derivations in prime rings[J]. J Algebra, 1993, 156: 385–394.
Bresar M, Vukman J. On certain subrings of prime rings with derivations[J]. J Austral Math Soc Series A, 1993, 54: 133–141.
Chebotar M A. On certain subrings and ideals of prime rings[C]. In: First International Tainan-Moscow Algebra Workshop. Walter de Gruyter, 1994. 177–180.
Chebotar M A, Lee P H. On certain subgroups of prime rings with derivations[J]. Comm Algebra, 2001, 29(7): 3083–3087.
Hvala B. Generalized derivations in rings [J]. Comm Algebra, 1998, 26(4): 1147–1166.
Albas E, Argac N. Generalized derivations of prime rings[J]. Algebra Colloquium, 2004, 11(3): 399–410.
Beidar K I, Martindale W S, Mikhalev A V. Rings with Generalized Identities[M]. Marcel Dekker, INC, New York, 1996.
Bresar M. Functional identities of degree two[J]. J Algebra, 1995, 172: 690–720.
Lee T K. Generalized derivations of left faithful rings[J]. Comm Algebra, 1999, 27(8): 4057–4073.
Author information
Authors and Affiliations
Corresponding author
Additional information
WU Wei, born in 1969, female, Dr, associate Prof.
Rights and permissions
About this article
Cite this article
Wu, W., Wan, Z. Generalized derivations in prime rings. Trans. Tianjin Univ. 17, 75–78 (2011). https://doi.org/10.1007/s12209-011-1497-4
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12209-011-1497-4