%0 Journal Article %T Notes on the characterization of derivations %A Eszter Gselmann %J Mathematics %D 2013 %I arXiv %X Although the characterization of ring derivations has an extensive literature, up to now, all of the characterizations have had the following form: additivity and another property imply that the function in question is a derivation. The aim of this note is to point out that derivations can be described via a single equation. %U http://arxiv.org/abs/1307.0633v1