On zero-sum ${\mathbb{Z}}_{2j}^k$-magic graphs

J. P. Georges, D. Mauro, K. Wash

Let $G=(V,E)$ be a finite graph and let $(\mathbb{A},+)$ be an abelian group with identity 0. Then $G$ is \textit{$\mathbb{A}$-magic} if and only if there exists a function $\varphi$ f…