Stability of a generalization of the Fréchet functional equation
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica, no. 14 (2015)
Voir la notice de l'article provenant de la source Library of Science
We prove some stability and hyperstability results for a generalization of the well known Fréchet functional equation, stemming from one of the characterizations of the inner product spaces. As the main tool we use a fixed point theorem for some function spaces. We end the paper with some new inequalities characterizing the inner product spaces.
@article{AUPCM_2015_14_a6,
author = {Malejki, Renata},
title = {Stability of a generalization of the {Fr\'echet} functional equation},
journal = {Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica},
publisher = {mathdoc},
number = {14},
year = {2015},
language = {en},
url = {http://geodesic.mathdoc.fr/item/AUPCM_2015_14_a6/}
}
Malejki, Renata. Stability of a generalization of the Fréchet functional equation. Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica, no. 14 (2015). http://geodesic.mathdoc.fr/item/AUPCM_2015_14_a6/