🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ1187620· pop 16· linked from 82 articlesperfect graphAlso known as Berge graphgraph whose maximum clique’s size equals the chromatic numberWikidata factsImagePaley9-perfect.svgSources (3)wikidata.orgthes.bncf.firenze.sbn.itdocs.openalex.orgvia Wikidata · CC0Available in 16 languagesEspañolFrançaisDeutsch日本語РусскийPortuguêsItalianoHebrewHungarianNederlandsPolskiConnectionsindependent setEntitycliqueEntityCategoriesPerfect graphs