The present paper deals with general solutions of the following functional equations: f(xy) = f̅(x)f̅(y), f(xy) = f̅(x)+f̅(y), f(xy) = fT(x)fT(y), f(xy) = fT(x)+fT(y), where the symbols on the right-hand sides of these equations denote the conjugate of complex numbers (or quaternions) and the transpose of matrices, respectively.
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Vol. 5 (1991)
Published: 1991-09-30