multipartite

1.A semicomplete multipartite digraph is obtained by replacing each edge of a complete multipartite graph by an arc or by a pair of two mutually opposite arcs.

摘要 弧或对方向相反弧代替完全多部无向图每边所得到有向图被称为是半完全多部有向图。

2.G-designs of complete multipartite graph with G has five points-four edges or five points-five edges is studied.

讨论了完全多部图G设计存在性，其中G是五点四边图和五点五边图。