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 用条弧或对方相反弧代替完全多条边所得到有被称为是半完全多有。

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G设计存在性，其中G是五点四边和五点五边。