A set of Vertices decomposed into two disjoint sets such that no two Vertices within the same set are adjacent. A bigraph is a special case of a k-Partite Graph with .
See also Complete Bipartite Graph, k-Partite Graph, König-Egeváry Theorem
References
Chartrand, G. Introductory Graph Theory. New York: Dover, p. 116, 1985.
Saaty, T. L. and Kainen, P. C. The Four-Color Problem: Assaults and Conquest. New York: Dover, p. 12, 1986.