A note on the edge choosability of $K_5$-minor free graphs

Jieru Feng, Jianliang Wu, Fan Yang

For a planar graph $G$, Borodin stated that $G$ is $(\Delta +1)$-edge-choosable if $\Delta \ge 9$ and later Bonamy showed that $G$ is $9$-edge-choosable if $\Delta =8$. At the same time, Borodin et…