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Let R be a prime ring of characteristic 3, s and t automorphisms of R, U a non zero ( s, t) - Lie ideal of R, d a nonzero derivation of R such that sd = ds , td = dt,d(U) (bak) U, and d2(U) (bak) Z, t...
Let R be a prime ring, char R\neq 2,3 \, s, t : R\rightarrow R two automorphisms, U a nonzero (s, t)- Lie ideal of R and o\neq d : R\rightarrow R a derivation such that s d = ds, t d = dt. In this pap...