Cycle Double Covers and Semi-Kotzig Frame

Dong Ye, Cun-Quan Zhang

Let $H$ be a cubic graph admitting a 3-edge-coloring $c:E(H)\to {\mathbb{Z}}_3$ such that the edges colored by 0 and $\mu \in \{1,2\}$ induce a Hamilton circuit of $H$ and the edges colo…