EntityQ7959587· pop 6· linked from 31 articlesWagner's theoremSign in to savecharacterization theorem in graph theory of planar graphsConnectionsglossary of graph theory termsEntityminor graphEntityInternational Standard Book NumberEntitydigital object identifierEntityplaneEntitygraph theoryEntitygraphEntityKazimierz KuratowskiEntitycomplete graphEntityQ22908627EntityLászló LovászEntitynodeEntityplanar graphEntityPetersen graphEntityMathematical ReviewsEntitypathEntitymatroidEntityloopless multigraphEntitycomplete bipartite graphEntitythree utilities problemEntityCategoriesGraph minor theoryStatements about planar graphsTheorems in graph theory