Abstract
For integral table algebras with integral table basisT, we can consider integralR-algebraRT over a subringR of the ring of the algebraic integers. It is proved that anR-algebra isomorphism between two integral table algebras must be an integral table algebra isomorphism if it is compatible with the so-called normalizings of the integral table algebras
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Fan, Y., Sun, D. On isomorphisms of integral table algebras. Sci. China Ser. A-Math. 45, 998–1005 (2002). https://doi.org/10.1007/BF02879982
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DOI: https://doi.org/10.1007/BF02879982