Average degrees of edge-$\hat{I}”$-critical multigraphs

Guantao Chen, Yuying Ma, Yimo Su +1

Let $G$ be a loopless multigraph with maximum degree $\hat{I}”(G)$, average degree $\overline{d}(G)$, density $\hat{I}“(G)$, and chromatic index $\ddot{I}{‡}^{\prime }(G)$. A multigraph $G$ is called edge-$\hat{I}”$-…