Caractérisation du module d'une fonction additive à l'aide d'une équation fonctionelle.
Caratterizzazione di classi di funzioni della forma F(x,y) = φ(h(x)+k(y)).
A characterization of some classes of functions F which have a representation of the formF(x,y) = φ(h(x)+k(y))is given, when F is monotonic in each variable but not strictly monotonic. Some particular results concern classes of solutions of the bisymmetry or associativity equations.
Cauchy's equation on ?: futher results.
Cauchy's equation on the graph of an involution.
Characterization of globally Lipschitzian composition operators in the Banach space
We give a characterization of the globally Lipschitzian composition operators acting in the space
Characterizations of sum form information measures on open domains.
Conitnuous increasing weakly bisymmetric groupoids and quasi-groups in .
Conjugacy of P-configurations and nonlinear solutions to a certain conditional Cauchy equation.
Continuous Solutions of a Functional Equation of n-th Order. (Short Communications).
Criteria for the Regularity of Continuous and Locally Integrable Solutions of a Class of Linear Functional Equations