Two-Sided Annihilator Condition with Generalized Derivations on Multilinear Polynomials
Keyword(s):
Let R be a prime ring of characteristic different from 2, with extended centroid C, U its two-sided Utumi quotient ring, F a nonzero generalized derivation of R, f(x1,…,xn) a noncentral multilinear polynomial over C in n noncommuting variables, and a,b∈R such that a[F(f(r1,…,rn)),f(r1,…,rn)]b=0 for any r1,…,rn∈R. Then one of the following holds: (1) a=0; (2) b=0; (3) there exists λ∈C such that F(x)=λx, for all x∈R; (4) there exist q∈U and λ∈C such that F(x)=(q+λ)x+xq, for all x∈R, and f(x1,…,xn)2 is central valued on R; (5) there exist q∈U and λ,μ∈C such that F(x)=(q+λ)x+xq, for all x∈R, and aq=μa, qb=μb.
Keyword(s):
2011 ◽
Vol 18
(spec01)
◽
pp. 955-964
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2009 ◽
Vol 80
(2)
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pp. 217-232
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Keyword(s):
Keyword(s):
2011 ◽
Vol 18
(spec01)
◽
pp. 987-998
◽
Keyword(s):