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math.FA2019
Characterizations of derivations
Eszter Gselmann
The main purpose of this work is to characterize derivations through functional equations. This work consists of five chapters. In the first one, we summarize the most important no…
math.CA2019
On a class of linear functional equations without range condition
Eszter Gselmann, Gergely Kiss, Csaba Vincze
The main purpose of this work is to provide the general solutions of a class of linear functional equations. Let be an arbitrarily fixed integer, let further and …