EntityQ7102401· pop 5· linked from 54 articlesorientationSign in to saveassignment of a direction to each edge of a graphConnectionscomparability graphEntityInternational Standard Book NumberEntitydigital object identifierEntitygraph theoryEntitygraphEntityJSTOREntitystatistical mechanicsEntityQ118398EntitybijectionEntityOn-Line Encyclopedia of Integer SequencesEntitytreeEntityMathWorldEntitycomplete graphEntitymatrix multiplicationEntitySpringer Science+Business MediaEntitygraph coloringEntityplanar graphEntitydirected graphEntityJudea PearlEntitypartially ordered setEntityCategoriesGraph theory objects