若G是哈密顿图，则其线图L（G）是泛圈图。

If G is Hamiltonian, then its line graph L(G) is pancyclic graph.

youdao

若G是哈密顿图，则其线图L（G）是泛圈图。

If G is Hamiltonian, then its line graph L(G) is pancyclic graph.

youdao