Communications of the
Korean Mathematical Society CKMS

Let $ \mathfrak{R}$ be a $\ast$-algebra with unity $I$ and a nontrivial projection $P_1$. In this paper, we show that under certain restrictions if a map $ \Psi : \mathfrak{R} \to \mathfrak{R}$ satisfies \begin{align*} &\ \Psi ( S_1 \diamond S_2 \diamond \cdots \diamond S_{n-1} \bullet S_n) \\ =&\ \sum_{k = 1}^{n} S_1 \diamond S_2 \diamond \cdots \diamond S_{k-1} \diamond \Psi( S_k)\diamond S_{k+1} \diamond \cdots \diamond S_{n-1} \bullet S_n \end{align*} for all $ S_{n-2}, S_{n-1}, S_n \in \mathfrak{R} $ and $S_i=I$ for all $i \in \{1,2,\hdots, n-3\}$, where $n\geq 3$, then $ \Psi$ is an additive $\ast$-derivation.

Keywords: $\ast$-algebra, $\ast$-derivation, mixed Jordan $n$-derivation

MSC numbers: 16W25, 47B47, 46K15