Peetre's inequality

inequality involving a real number and n-dimensional real vectors
Thing inequality Q4121034
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Peetre's inequality

Summary

Peetre's inequality is an inequality[1]. It draws 7 Wikipedia views per month (inequality category, ranking #22 of 41).[2]

Key Facts

  • Peetre's inequality's instance of is recorded as inequality[3].
  • Peetre's inequality's instance of is recorded as theorem[4].
  • Jaak Peetre is named after Peetre's inequality[5].
  • Peetre's inequality's Freebase ID is recorded as /m/07rfvl[6].
  • Peetre's inequality's defining formula is recorded as \left( \frac{1+|x|^2}{1+|y|^2} \right)^t \le 2^{|t|} (1+|x-y|^2)^{|t|}[7].
  • Peetre's inequality's maintained by WikiProject is recorded as WikiProject Mathematics[8].

Why It Matters

Peetre's inequality draws 7 Wikipedia views per month (inequality category, ranking #22 of 41).[2] It has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[9]

📑 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). Peetre's inequality. Retrieved May 3, 2026, from https://4ort.xyz/entity/peetre-s-inequality
MLA “Peetre's inequality.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/peetre-s-inequality.
BibTeX @misc{4ortxyz_peetre-s-inequality_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Peetre's inequality}}, year = {2026}, url = {https://4ort.xyz/entity/peetre-s-inequality}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Peetre's inequality — https://4ort.xyz/entity/peetre-s-inequality (retrieved 2026-05-03)

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