The directed distance dimension of oriented graphs
For a vertex of a connected oriented graph and an ordered set of vertices of , the (directed distance) representation of with respect to is the ordered -tuple , where is the directed distance from to . The set is a resolving set for if every two distinct vertices of have distinct representations. The minimum cardinality of a resolving set for is the (directed distance) dimension of . The dimension of a connected oriented graph need not be defined. Those oriented graphs...