perfect graph

graph whose maximum clique’s size equals the chromatic number
Thing bounded_graph_class Q1187620
perfect graph
David Eppstein at English Wikipedia · Public Domain · Wikimedia
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perfect graph

Summary

perfect graph is a χ-bounded graph class[1]. It draws 57 Wikipedia views per month (bounded_graph_class category, ranking #1 of 1).[2]

Key Facts

  • perfect graph's image is recorded as Paley9-perfect.svg[3].
  • perfect graph's instance of is recorded as χ-bounded graph class[4].
  • perfect graph's instance of is recorded as intersection class of graphs[5].
  • perfect graph's instance of is recorded as self-complementary graph class[6].
  • perfect graph's Library of Congress authority ID is recorded as sh85099790[7].
  • perfect graph's Bibliothèque nationale de France ID is recorded as 12396031j[8].
  • perfect graph's subclass of is recorded as odd-anti-hole-free graph[9].
  • perfect graph's subclass of is recorded as odd-hole-free graph[10].
  • perfect graph's BNCF Thesaurus ID is recorded as 57123[11].
  • perfect graph's Freebase ID is recorded as /m/031hx5[12].
  • perfect graph's topic's main category is recorded as Category:Perfect graphs[13].
  • perfect graph's studied by is recorded as graph theory[14].
  • perfect graph's MathWorld ID is recorded as PerfectGraph[15].
  • perfect graph's Wolfram Language entity code is recorded as Entity["GraphClass", "Perfect"][16].
  • perfect graph's maintained by WikiProject is recorded as WikiProject Mathematics[17].
  • perfect graph's Microsoft Academic ID is recorded as 32972407[18].
  • perfect graph's ProofWiki ID is recorded as Definition:Perfect_Graph[19].
  • perfect graph's National Library of Israel J9U ID is recorded as 987007536193405171[20].
  • perfect graph's OpenAlex ID is recorded as C32972407[21].
  • perfect graph's graphclasses.org ID is recorded as gc_56[22].
  • perfect graph's graphclasses.org ID is recorded as gc_280[23].
  • perfect graph's graphclasses.org ID is recorded as gc_597[24].
  • perfect graph's graphclasses.org ID is recorded as gc_281[25].
  • perfect graph's graphclasses.org ID is recorded as gc_279[26].
  • perfect graph's graphclasses.org ID is recorded as gc_274[27].

Why It Matters

perfect graph draws 57 Wikipedia views per month (bounded_graph_class category, ranking #1 of 1).[2] It has Wikipedia articles in 15 language editions, a strong signal of global cultural recognition.[28] It is known by 6 alternative names across languages and contexts.[29]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . Characterizing intersection classes of graphs. wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . Nuovo soggettario. Retrieved . thes.bncf.firenze.sbn.it. Provenance: wikidata.org.
  6. [8] . Nuovo soggettario. Retrieved . thes.bncf.firenze.sbn.it. Provenance: wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . Nuovo soggettario. wikidata.org.
  10. [12] . Freebase Data Dumps. wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . National Library of Israel. wikidata.org.
  19. [21] . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. wikidata.org.
  3. [29] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). perfect graph. Retrieved May 3, 2026, from https://4ort.xyz/entity/perfect-graph
MLA “perfect graph.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/perfect-graph.
BibTeX @misc{4ortxyz_perfect-graph_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{perfect graph}}, year = {2026}, url = {https://4ort.xyz/entity/perfect-graph}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): perfect graph — https://4ort.xyz/entity/perfect-graph (retrieved 2026-05-03)

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