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open problem

known problem or question which is thought to have an objective and verifiable solution or explanation, but which has not yet been solved
Thing type_of_problem Q1321906
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open problem

Summary

open problem is a type of problem[1]. It has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • open problem's instance of is recorded as type of problem[3].
  • open problem is a type of problem[4].
  • open problem's Commons category is recorded as Open problems[5].
  • open problem is the opposite of solved problem[6].
  • open problem's topic's main category is recorded as Category:Open problems[7].
  • open problem's facet of is recorded as academic research[8].
  • open problem's facet of is recorded as question[9].
  • open problem's topic has template is recorded as Template:Unsolved problems[10].
  • open problem's Stack Exchange tag is recorded as https://mathoverflow.net/tags/open-problems[11].
  • open problem's has characteristic is recorded as difficulty[12].
  • open problem's different from is recorded as unsolvable problem[13].
  • open problem's has list is recorded as list of unsolved problems[14].
  • open problem's does not have part is recorded as solution[15].
  • open problem's maintained by WikiProject is recorded as WikiProject Mathematics[16].

Body

Definition and Type

open problem's instance of is recorded as type of problem[3]. It is a type of problem[4]. It is the opposite of solved problem[6].

Why It Matters

open problem has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[2] It is known by 33 alternative names across languages and contexts.[17]

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] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [17] ↑ . 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). open problem. Retrieved May 3, 2026, from https://4ort.xyz/entity/open-problem
MLA “open problem.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/open-problem.
BibTeX @misc{4ortxyz_open-problem_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{open problem}}, year = {2026}, url = {https://4ort.xyz/entity/open-problem}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): open problem — https://4ort.xyz/entity/open-problem (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/open-problem · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 8h ago · MatSuBot bot · 2026-07-06 view diff on Wikidata ↗
    Has list → list of unsolved problems
    Has characteristic → difficulty
    Facet of → academic research, question
    Maintained by wikiproject → WikiProject Mathematics
    + 10 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-short:0||jbo, zh */ import labels from sitelinks; cleanup"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.