🌐EnglishEnglishDeutschEspañolNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийفارسی中文日本語EntityQ837902· pop 15· linked from 34 articlesKuratowski's theorema finite graph is planar iff it does not contain a subgraph that is a subdivision of K₅ or K₃,₃ConnectionshomeomorphismEntitySoviet UnionConceptCategoriesStatements about planar graphsTheorems in graph theory