Centralizing b-generalized derivations on multilinear polynomials
Keyword(s):
Let R be a prime ring of characteristic different from 2 and F a b-generalized derivation on R. Let U be Utumi quotient ring of R with extended centroid C and f (x1,..., xn) be a multilinear polynomial over C which is not central valued on R. Suppose that d is a non zero derivation on R such that d([F(f(r)), f(r)]) ? C for all r = (r1,..., rn) ? Rn, then one of the following holds: (1) there exist a ? U, ? ? C such that F(x) = ax + ?x + xa for all x ? R and f (x1,..., xn)2 is central valued on R, (2) there exists ? ? C such that F(x) = ?x for all x ? R.
Keyword(s):
2011 ◽
Vol 18
(spec01)
◽
pp. 955-964
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2009 ◽
Vol 80
(2)
◽
pp. 217-232
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Keyword(s):
Keyword(s):
2011 ◽
Vol 18
(spec01)
◽
pp. 987-998
◽
Keyword(s):