Derivations and 2-local derivations on matrix algebras over commutative algebras

Wenbo Huang, Jiankui Li, Wenhua Qian

We characterize derivations and 2-local derivations from $M_n(\mathcal{A})$ into $M_n(\mathcal{M})$, $n\ge 2$, where $\mathcal{A}$ is a unital algebra over $\mathbb{C}$ and $\…