A Cosine Functional Equation with Restricted Argument. (Short Communication). L.B. Etigson (1974) Aequationes mathematicae

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

A generalization of a theorem of S. Gołąb and M. Kucharzewski Jan Luchter (1971) Annales Polonici Mathematici

A generalization of Ostrowski' theorem on ultrametric inequalities. J.L. García-Roig (1991) Aequationes mathematicae

A necessary and sufficient condition for continuity of additive functions Jaroslav Smítal (1976) Czechoslovak Mathematical Journal

A Proof of the Equivalence of the Equation f (x + y - xy) + f (xy) = f (x) + f (y) and Jensen's Functional Equation. (Short Communication). Halina Swiatak (1970) Aequationes mathematicae

A Proof of theEquivalence of the Equation f(x+y-xy)+f(xy) = f(x) + (y) and Jensen's Functional Equa tion HALINA SWIATAK (1971) Aequationes mathematicae

A special solution of the inhomogeneous Schröder equation. Choczewski, Bogdan (1998) Mathematica Pannonica

Aczél's Uniqueness theorem and Cellular Internity. (Short Communication). J.B. Miller (1970) Aequationes mathematicae

Addition Formulae for Field-Valued Continuous Functions on Topological Groups. Christopher L. Morgan (1974) Aequationes mathematicae

All General Solutions of Finite Equations Dragić Banković (1990) Publications de l'Institut Mathématique