摘要

Let R be a prime ring, let I be a nonzero ideal of R and let n be a fixed positive integer. We prove that if the characteristic of R is either 0 or a prime p that is greater than 2n, then an additive map d that satisfies d(x(n+1)) = Sigma(n)(j= 0) x(n-j) d(x)x(j) for all x is an element of I must be a derivation.

  • 出版日期2011-10

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