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Hilbert's ninth problem

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Hilbert's ninth problem

Summary

Hilbert's ninth problem is a mathematical problem[1]. It draws 11 Wikipedia views per month (mathematical_problem category, ranking #75 of 128).[2]

Key Facts

  • Hilbert's ninth problem's instance of is recorded as mathematical problem[3].
  • David Hilbert is named after Hilbert's ninth problem[4].
  • Hilbert's ninth problem's part of is recorded as Hilbert's problems[5].
  • Hilbert's ninth problem's Freebase ID is recorded as /m/05p14f[6].

Why It Matters

Hilbert's ninth problem draws 11 Wikipedia views per month (mathematical_problem category, ranking #75 of 128).[2] It has Wikipedia articles in 7 language editions, a strong signal of global cultural recognition.[7] It is known by 6 alternative names across languages and contexts.[8]

Related Entities

David Hilbert

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] ↑ . wikidata.org.
  4. [6] ↑ . Freebase Data Dumps. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [7] ↑ . Wikidata sitelinks. wikidata.org.
  3. [8] ↑ . 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). Hilbert's ninth problem. Retrieved May 3, 2026, from https://4ort.xyz/entity/hilbert-s-ninth-problem
MLA “Hilbert's ninth problem.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hilbert-s-ninth-problem.
BibTeX @misc{4ortxyz_hilbert-s-ninth-problem_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Hilbert's ninth problem}}, year = {2026}, url = {https://4ort.xyz/entity/hilbert-s-ninth-problem}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Hilbert's ninth problem — https://4ort.xyz/entity/hilbert-s-ninth-problem (retrieved 2026-05-03)

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