INFORMAZIONI SU QUESTO ARTICOLO
Pubblicato online: 30 dic 2015
Pagine: 81 - 104
Ricevuto: 04 feb 2015
DOI: https://doi.org/10.1515/aupcsm-2015-0007
© by Zenon Moszner
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
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.