On a certain integral equation
On a certain series
On a characterization of polynomials by divided differences.
On a characterization of polynomials by divided differences. (Summary).
On a characterization of symmetric stable processes.
On a characterization of symmetric stable processes. (Short Communication).
On A Characterization Of Trigonometrical And Hyperbolic Functions By Functional Equations
On a class of complex functional equations.
On a class of composite functional equations in a single variable.
On a Class of Functional Equations with Several Unknown Functions. (Short Communication).
On a Class of Functional Equations with Several Unknown Functions.
On a Class of Retarded Partial Differential Equations.
On a conditional Cauchy functional equation of several variables and a characterization of multivariate stable distributions.
On a Conditional Cauchy-type Functional Equation Involving Powers
We solve the functional equation f(x^m + y) = f(x)^m + f(y) in the realm of polynomials with integer coefficients.
On a Conjecture of A. Ivić and W. Schwarz
On a cubic equation and a Jensen-quadratic equation.
On a Cubic Functional Equation defined on Groups.
On a family of quasi-arithmetic means.
On a functional equation arising from hyperbolic geometry.
On a Functional Equation Arising from the Monteiro-Botelho-Teixeira Axioms for a Topological Space