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 一条弧或一对方相反的弧代替完全多无的每一条边所得到的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.

讨论了完全多的G设计的存在性，其中G是五点四边和五点五边。