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  • 1 Department of Mathematics, University of Maribor, PEF Koroška 160, 2000 Maribor, Slovenia Koroška 160, 2000 Maribor, Slovenia
  • | 2 Department of Mathematics, University of Maribor, PEF Koroška 160, 2000 Maribor, Slovenia Koroška 160, 2000 Maribor, Slovenia
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Summary  

Let Abe a semisimple H*-algebra and let T: AAbe an additive mapping such that T(xn+1)=T(x)xn+xnT(x) holds for all xAand some integer n≥1. In this case Tis a left and a right centralizer.