Itō's lemma

identity in Itô calculus analogous to the chain rule
Intangible theorem Q1151100
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Itō's lemma

Summary

Itō's lemma is a theorem[1]. It ranks in the top 4% of theorem entities by monthly Wikipedia readership (561 views/month).[2]

Key Facts

  • Itō's lemma's instance of is recorded as theorem[3].
  • Itō's lemma's instance of is recorded as lemma[4].
  • Kiyoshi Itō is named after Itō's lemma[5].
  • Itō's lemma's Freebase ID is recorded as /m/01cz34[6].
  • Itō's lemma's facet of is recorded as stochastic differential equation[7].
  • Itō's lemma's maintained by WikiProject is recorded as WikiProject Mathematics[8].
  • Itō's lemma's Microsoft Academic ID is recorded as 200249960[9].
  • Itō's lemma's ScienceDirect topic ID is recorded as engineering/ito-lemma[10].

Why It Matters

Itō's lemma ranks in the top 4% of theorem entities by monthly Wikipedia readership (561 views/month).[2] It has Wikipedia articles in 14 language editions, a strong signal of global cultural recognition.[11] It is known by 20 alternative names across languages and contexts.[12]

📑 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). Itō's lemma. Retrieved May 3, 2026, from https://4ort.xyz/entity/it-s-lemma
MLA “Itō's lemma.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/it-s-lemma.
BibTeX @misc{4ortxyz_it-s-lemma_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Itō's lemma}}, year = {2026}, url = {https://4ort.xyz/entity/it-s-lemma}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Itō's lemma — https://4ort.xyz/entity/it-s-lemma (retrieved 2026-05-03)

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