Exponential-cosine operator-valued functional equation in the strong operator topology.
Extended stability problem for alternative Cauchy-Jensen mappings.
Extension of additive functionals and semicharacters on commutative semigroups.
Extension of the Riesz Representation Theorem and Solution of the Maxwell-Boltzmann Functional Equation. (Short Communication).
Extension of the Riesz Representation Theorem and Solution of the Maxwell Functional Equation.
Extension theorems for integral representations of solutions of a functional eqaution.
Extensions of Popoviciu's inequality using a general method.
Faà di Bruno's formula and nonhyperbolic fixed points of one-dimensional maps.
Factoring biquadratic maps on modules.
Fixed point methods for the generalized stability of functional equations in a single variable.
Fixed points and Hyers--Ulam--Rassias stability of Cauchy--Jensen functional equations in Banach algebras.
Fixed points and random stability of a generalized Apollonius type quadratic functional equation.
Fixed points and stability for functional equations in probabilistic metric and random normed spaces.
Fixed points and stability of a generalized quadratic functional equation.
Fixed points and stability of the Cauchy functional equation in -algebras.
Fixed points and the stability of an AQCQ-functional equation in non-Archimedean normed spaces.
Fixed points and the stability of Jensen's functional equation.
Fixed points, inner product spaces, and functional equations.
Fixed-point theorems for multi-valued functions and their applications to functional equations [Book]
Fonctions définies dans le plan et vérifiant certaines propriétés de moyenne
Soit un réel de . Nous étudions le système d’équations de convolution suivantNous démontrons que les exponentielles polynômes solutions de sont denses dans l’espace des solutions du système d’équations; l’idéal de engendré par les transformées de Fourier des deux mesures intervenant ici est “slowly decreasing” au sens de Berenstein-Taylor. Lorsque n’est pas un nombre de Liouville, nous montrons qu’il existe un ouvert relativement compact telle que toute solution distribution de régulière...