On the Weierstrass functions, Sigma, Zeta, Pe, and their functional and differential equations. (Short Communication).
On Two Functional Equations Connected with a Mean-Value Property of Polynomials
On Two Functional Equations Connected with a Mean-Value Property of Polynomials (Short Communication)
On Uniqueness Theorems of Aczél and Cellular Internity of Miller (Short Communication)
On Uniqueness Theorems of Aczél and Cellular Internity of Miller
Orbit properties of functions and "Pre-Abel'' equations
Oscillation and global attractivity in a nonlinear delay difference equation
p-convex iteration groups
QL-implications versus D-implications
This paper deals with two kinds of fuzzy implications: QL and Dishkant implications. That is, those defined through the expressions and respectively, where is a t-norm, is a t-conorm and is a strong negation. Special attention is due to the relation between both kinds of implications. In the continuous case, the study of these implications is focused in some of their properties (mainly the contrapositive symmetry and the exchange principle). Finally, the case of non continuous t-norms...
Quadratic functionals and bilinear forms
Quelques observations à propos de l'équation pré-Schröder
Regular Iteration in the Case of Multiplier Zero
Regularity Properties of Functional Equations
Regularity Properties of Functional Equations (Short Communication)
Regularization and general methods in the theory of functional equations.
Remarks on One-Parameter Subsemigroups of the Affine Group and Their Homo- and Isomorphisms.
Remarks on some number-theoretical functional equations.
Résolutions de deux équations fonctionnelles proches de l'équation de Cauchy
Sobre la sección diagonal y la región cero de una t-norma.
We prove that two archimedean t-norms with equal diagonal sections and zero-sets must be identical.
Solution of Cauchy's functional equation on a restricted domain