Hadwiger number

graph property
Thing graph_property Q5638117
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Hadwiger number

Summary

Hadwiger number is a graph property[1]. It draws 2 Wikipedia views per month (graph_property category, ranking #29 of 43).[2]

Key Facts

  • Hadwiger number's instance of is recorded as graph property[3].
  • Hugo Hadwiger is named after Hadwiger number[4].
  • Hadwiger number's Freebase ID is recorded as /m/0r4ksy2[5].
  • Hadwiger number's studied by is recorded as graph theory[6].
  • Hadwiger number's MathWorld ID is recorded as HadwigerNumber[7].
  • Hadwiger number's exact match is recorded as https://www.findstat.org/StatisticsDatabase/St000822/[8].
  • Hadwiger number's greater than is recorded as clique number[9].
  • Hadwiger number's less than is recorded as pseudoachromatic number[10].
  • Hadwiger number's less than is recorded as treewidth[11].
  • Hadwiger number's less than is recorded as tree-depth[12].
  • Hadwiger number's maintained by WikiProject is recorded as WikiProject Mathematics[13].
  • Hadwiger number's Microsoft Academic ID is recorded as 2780850808[14].
  • Hadwiger number's computational complexity is recorded as NP-hard[15].

Why It Matters

Hadwiger number draws 2 Wikipedia views per month (graph_property category, ranking #29 of 43).[2]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . Retrieved . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . Retrieved . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . The harmonious chromatic number and the achromatic number. wikidata.org.
  9. [11] . Defective and clustered colouring of graphs with given girth. wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . Retrieved . wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.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). Hadwiger number. Retrieved May 3, 2026, from https://4ort.xyz/entity/hadwiger-number
MLA “Hadwiger number.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hadwiger-number.
BibTeX @misc{4ortxyz_hadwiger-number_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Hadwiger number}}, year = {2026}, url = {https://4ort.xyz/entity/hadwiger-number}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Hadwiger number — https://4ort.xyz/entity/hadwiger-number (retrieved 2026-05-03)

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