Antimagic orientations of even regular graphs

Tong Li, Zi-Xia Song, Guanghui Wang +2

A labeling of a digraph $D$ with $m$ arcs is a bijection from the set of arcs of $D$ to $\{1,\dots ,m\}$. A labeling of $D$ is antimagic if no two vertices in $D$ have the same v…