Sugeno's negations and T-norms.
A functional characterization of Sugeno's negations is presented and as a consequence, we study a family of non strict Archimedean t-norms whose (vertical-horizontal) sections are straight lines.
Sulla costruzione della soluzione generale di una classe di equazioni funzionali.
We consider a functional equation of the formG(x, phi(f1(x)), ..., phi(fr(x))) = cin the unknown function phi.We present a method to construct the general solution of this equation under suitable hypotheses on the functions Inf i fi and Supi fi.
Sums of an entire function in certain weighted L2-spaces.
We consider the functional equation f(z+σ) - f(z) = g(z) where σ is a complex number, f and g are entire functions of a complex variable z, with growth conditions. We prove the existence of certain types of solutions of this equation by an a priori estimate method in certain weighted L2-spaces.
Sums of weight vectors and sums of semilinear functions.
Supernumary polylogarithmic ladders and related functional equations.
Supersensitivity for a discrete-time aggregation model.
Superstability and stability of the pexiderized multiplicative functional equation.
Superstability for generalized module left derivations and generalized module derivations on a Banach module. II.
Superstability for generalized module left derivations and generalized module derivations on a Banach module. I.
Superstability of functional equations related to spherical functions
In this paper we prove stability-type theorems for functional equations related to spherical functions. Our proofs are based on superstability-type methods and on the method of invariant means.
Superstability of generalized derivations.
Superstability of generalized multiplicative functionals.
Superstability of multipliers and ring derivations on Banach algebras.
Superstability of some Pexider-type functional equation.
Sur certaines équations analogues aux équations différentielles
Sur certaines équations fonctionnelles
Sur des solutions maximales de l'equation de translation.
Sur la caractérisation de la fonction f(x) = x par des équations fonctionnelles, II. (Short Communication).
Sur la détermination de certains sous-groupes du groupe à l’aide d’équations fonctionnelles [Book]
Sur la stabilité de l'équation d'homomorphisme.