Squares of subcubic planar graphs without cycles of length 4-8 are 6-choosable

Seog-Jin Kim, Rong Luo

The {\em square} of a graph $G$, denoted $G^2$, has the same vertex set as $G$ and an edge between any two vertices at distance at most $2$ in $G$. Wegner (1977) conjectured that f…