EntityQ4927193· pop 5· linked from 23 articlesblock graphSign in to saveconnected graph whose biconnected components are all cliquesConnectionsapproximation algorithmEntitydigital object identifierEntityPaul ErdősEntitygraph theoryEntitygraphEntityif and only ifEntitybar chartEntitytreeEntityQ22908627Entityplanar graphEntitytime complexityEntityHandle SystemEntityblock diagramEntityMathematical ReviewsEntityshortest path problemEntitycliqueEntityVera T. SósEntityline graphEntitychordal graphEntityperfect graphEntityCategoriesGraph familiesIntersection classes of graphsPerfect graphsTrees (graph theory)