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Ky Fan inequality

two possible inequalities, one involving positive numbers and another from game theory
Intangible theorem Q366730
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Ky Fan inequality

Summary

Ky Fan inequality is a theorem[1]. It draws 49 Wikipedia views per month (theorem category, ranking #256 of 1,306).[2]

Key Facts

  • Ky Fan inequality's instance of is recorded as theorem[3].
  • Ky Fan inequality's instance of is recorded as inequality[4].
  • Ky Fan is named after Ky Fan inequality[5].
  • Ky Fan inequality's proved by is recorded as Ky Fan[6].
  • Ky Fan inequality's maintained by WikiProject is recorded as WikiProject Mathematics[7].

Body

Definition and Type

Recorded instance of include theorem[3] and inequality[4].

Origins

Ky Fan is named after Ky Fan inequality[5].

Why It Matters

Ky Fan inequality draws 49 Wikipedia views per month (theorem category, ranking #256 of 1,306).[2] It has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[8] It is known by 3 alternative names across languages and contexts.[9]

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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [8] ↑ . Wikidata sitelinks. wikidata.org.
  3. [9] ↑ . 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). Ky Fan inequality. Retrieved May 3, 2026, from https://4ort.xyz/entity/ky-fan-inequality
MLA “Ky Fan inequality.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/ky-fan-inequality.
BibTeX @misc{4ortxyz_ky-fan-inequality_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Ky Fan inequality}}, year = {2026}, url = {https://4ort.xyz/entity/ky-fan-inequality}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Ky Fan inequality — https://4ort.xyz/entity/ky-fan-inequality (retrieved 2026-05-03)

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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. 21d ago · InternetArchiveBot bot · 2026-05-16 view diff on Wikidata ↗
    Aliases → —
    Instance of → theorem, inequality
    Named after → Ky Fan
    Maintained by wikiproject → WikiProject Mathematics
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-references:1||1|2 */ [[Property:P10283]]: C188791865, Rescuing 1 sources and submitting 0 for archiving. #IABot (v2.0.9.5)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.