Ashraf, M.; Jacob, V. W. On certain polynomial identities implying commutativity for rings. (English) Zbl 0988.16518 Acta Sci. Nat. Univ. Jilinensis 1996, No. 2, 13-17 (1996). MSC: 16U70 Center, normalizer (invariant elements) (associative rings and algebras) 16R50 Other kinds of identities (generalized polynomial, rational, involution) 16U80 Generalizations of commutativity (associative rings and algebras) PDF BibTeX XML Cite \textit{M. Ashraf} and \textit{V. W. Jacob}, Acta Sci. Nat. Univ. Jilinensis 1996, No. 2, 13--17 (1996; Zbl 0988.16518)