A canonical form for a system of quadratic functional equations J. A. Lester (1976) Colloquium Mathematicae

A characterization of continuous associative operations whose graphs are ruled surfaces. C. Alsina, A. Sklar (1987) Aequationes mathematicae

A characterization of convolution and related operations. Claudi Alsina (1985) Aequationes mathematicae

A characterization of some classes of functions F of the form F(x, y) = g(...f(x) + ßf(y) + ...) or F(x, y) = ...(h(x) + k(y)). Luigi Paganoni, Daniela Rusconi (1983) Aequationes mathematicae

A class of hypertranscendental functions. J.H. Loxton, A.J. van der Poorten (1977) Aequationes mathematicae

A class of hypertranscendental functions. (Short Communication). J.H. Loxton, A.J. van der Poorten (1977) Aequationes mathematicae

A class of nowhere continuous solutions of Baxter's equation. Walter Benz (1986) Aequationes mathematicae

A functional equation and its application to information theory P. Kannappan, C. T. Ng (1974) Annales Polonici Mathematici

A functional equation arising from the Joukowski transformation Hiroshi Haruki (1985) Annales Polonici Mathematici

A functional equation arising in multi-agent statistical decision theory. Carl Sundberg, Carl Wagner (1987) Aequationes mathematicae

A functional equation connected with the sine addition theorem Haruki, Hiroshi (1976) Portugaliae mathematica

A Functional Inequality for Entire Functions Generalizing the Sine Functional Equation. (Short Communication). Lawrence Etigson (1974) Aequationes mathematicae

A Fundamental Functional Equation for Vector Lattices. (Short Communication). Ih-Ching Hsu (1975) Aequationes mathematicae

A generalization of entropy equation: homogeneous entropies Bhu Dev Sharma, R. P. Singh (1985) Kybernetika

A generalization of Hille's and Robinson's functional equations Haruki, Hiroshi (1981) Portugaliae mathematica