1.G-designs of complete multipartite graph with G has five points-four edges or five points-five edges is studied.
讨了完全多部图G设计存在性,其中G是五点四边图和五点五边图。
2.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.