@article{Sandhu_Kumar_2019, title={On additivity of derivations}, volume={11}, url={https://journals.pnu.edu.ua/index.php/cmp/article/view/2123}, DOI={10.15330/cmp.11.2.453-462}, abstractNote={<p>Let $R$ be a ring and $M$ be an $R$-bimodule. A mapping $d:R\rightarrow M$ (not necessarily additive) is called multiplicative derivation of $R$ if $d(xy)=d(x)y+xd(y)$ for all $x,y\in R.$ In this paper, we intend to establish the additivity of $d$ under some suitable restrictions. Moreover, we introduce multiplicative semi-derivations of rings and discuss their additivity.</p>}, number={2}, journal={Carpathian Mathematical Publications}, author={SandhuG.S. and KumarD.}, year={2019}, month={Dec.}, pages={453-462} }