We consider the stability, the superstability and the inverse stability of the functional equations with squares of Cauchy’s, of Jensen’s and of isometry equations and the stability in Ulam-Hyers sense of the alternation of functional equations and of the equation of isometry.
@article{bwmeta1.element.doi-10_1515_aupcsm-2015-0007,
author = {Zenon Moszner},
title = {On the stability of the squares of some functional equations},
journal = {Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica},
volume = {14},
year = {2015},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_1515_aupcsm-2015-0007}
}
Zenon Moszner. On the stability of the squares of some functional equations. Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica, Tome 14 (2015) . http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_1515_aupcsm-2015-0007/