A note on a conjecture of star chromatic index for outerplanar graphs

Xingchao Deng, Qingye Yao, Yanbing Zhang +1

A star edge coloring of a graph $G$ is a proper edge coloring of $G$ without bichromatic paths or cycles of length four. The it star chromatic index, ${\chi }_{st}^{{}^{\prime }}(G),$ of $G$ is t…