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Hadamard's inequality

theorem
Intangible theorem Q1365087
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Hadamard's inequality

Summary

Hadamard's inequality is a theorem[1]. It draws 64 Wikipedia views per month (theorem category, ranking #239 of 1,306).[2]

Key Facts

  • Hadamard's inequality's instance of is recorded as theorem[3].
  • Jacques Hadamard is named after Hadamard's inequality[4].
  • Hadamard's inequality's Freebase ID is recorded as /m/02wg7j[5].
  • Hadamard's inequality's MathWorld ID is recorded as HadamardsInequality[6].
  • Hadamard's inequality's maintained by WikiProject is recorded as WikiProject Mathematics[7].
  • Hadamard's inequality's Microsoft Academic ID is recorded as 31021346[8].
  • Hadamard's inequality's OpenAlex ID is recorded as C31021346[9].
  • Hadamard's inequality's Digital Library of Mathematical Functions ID is recorded as 1.3.E9[10].
  • Hadamard's inequality's Great Russian Encyclopedia portal ID is recorded as teorema-adamara-ob-opredeliteliakh-9a963c[11].

Why It Matters

Hadamard's inequality draws 64 Wikipedia views per month (theorem category, ranking #239 of 1,306).[2] It has Wikipedia articles in 10 language editions, a strong signal of global cultural recognition.[12]

Related Entities

Jacques Hadamard

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] ↑ . Freebase Data Dumps. wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [12] ↑ . Wikidata sitelinks. 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). Hadamard's inequality. Retrieved May 3, 2026, from https://4ort.xyz/entity/hadamard-s-inequality
MLA “Hadamard's inequality.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hadamard-s-inequality.
BibTeX @misc{4ortxyz_hadamard-s-inequality_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Hadamard's inequality}}, year = {2026}, url = {https://4ort.xyz/entity/hadamard-s-inequality}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Hadamard's inequality — https://4ort.xyz/entity/hadamard-s-inequality (retrieved 2026-05-03)

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