A digraph is considered supereulerian if it possesses a spanning closed ditrail. Let be positive integer and be a bipartite digraph, whose vertices are divided into two equal parts of size . If is strongly connected and , where is its minimum in-degree and is its minimum out-degree, then is supereulerian digraph.

中文翻译：

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超欧拉二分图的顶点度和


如果有向图具有跨越的闭合二向图，则该有向图被认为是超欧拉图。设 为正整数，为二部有向图，其顶点被分为大小为 的两个相等部分。如果 和 是强连通的，其中 是其最小入度， 是其最小出度，则 是超欧拉有向图。