ABSTRACT
Elements of set XFDQEHUHSUHVHQWHGE\GRWVLQDSODQHQDPHGWKHnodes or vertices of the graph.
The set of ordered pairs, U, which represents a relation, sometimes is GHQRWHGE\U. Elements of this set are edges of the graph. Thus, a graph can EHGHVFULEHGDV
),(),( * XUXG .
