ein Graph G(E, K), in dem

\begin{eqnarray}E={v}_{0}\cup \{{v}_{1},\ldots {v}_{n}\}\end{eqnarray}

und

\begin{eqnarray}\begin{array}{lll}K & = & \{({v}_{0},{v}_{i}):i=1,\ldots,n\}\\ & & \displaystyle \cup \{({v}_{1},{v}_{2}),({v}_{2},{v}_{3}),\ldots,({v}_{n},{v}_{1})\}\end{array}\end{eqnarray}

gelten.