sigma-algebra

algebraic structure closed under numerable union, intersection, and complement.
Thing general Q217357
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sigma-algebra

Summary

sigma-algebra ranks in the top 2% of general entities by monthly Wikipedia readership (525 views/month).[1]

Key Facts

  • sigma-algebra's GND ID is recorded as 4181252-9[2].
  • sigma-algebra's subclass of is recorded as Dynkin system[3].
  • sigma-algebra's subclass of is recorded as sigma-ring[4].
  • sigma-algebra's subclass of is recorded as field of sets[5].
  • sigma-algebra's subclass of is recorded as pi-system[6].
  • sigma-algebra's subclass of is recorded as subset[7].
  • sigma-algebra's part of is recorded as measure space[8].
  • sigma-algebra's part of is recorded as measurable space[9].
  • sigma-algebra's BNCF Thesaurus ID is recorded as 24182[10].
  • sigma-algebra's Freebase ID is recorded as /m/07b1x[11].
  • sigma-algebra's facet of is recorded as measure[12].
  • sigma-algebra's different from is recorded as sigma algebra of events[13].
  • sigma-algebra's has part is recorded as measurable set[14].
  • sigma-algebra's MathWorld ID is recorded as Sigma-Algebra[15].
  • sigma-algebra's Quora topic ID is recorded as Sigma-Algebras[16].
  • sigma-algebra's nLab ID is recorded as sigma-algebra[17].
  • sigma-algebra's maintained by WikiProject is recorded as WikiProject Mathematics[18].
  • sigma-algebra's Microsoft Academic ID is recorded as 156226982[19].
  • sigma-algebra's ProofWiki ID is recorded as Definition:Sigma-Algebra[20].
  • sigma-algebra's Encyclopedia of Mathematics article ID is recorded as algebra_of_sets[21].
  • sigma-algebra's Lex ID is recorded as sigma-algebra[22].
  • sigma-algebra's Treccani's Enciclopedia della Matematica ID is recorded as sigma-algebra[23].
  • sigma-algebra's Metamath statement ID is recorded as df-siga[24].

Why It Matters

sigma-algebra ranks in the top 2% of general entities by monthly Wikipedia readership (525 views/month).[1] sigma-algebra has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.[25] sigma-algebra is known by 70 alternative names across languages and contexts.[26]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [3] . wikidata.org.
  3. [4] . wikidata.org.
  4. [5] . wikidata.org.
  5. [6] . wikidata.org.
  6. [7] . wikidata.org.
  7. [8] . wikidata.org.
  8. [9] . wikidata.org.
  9. [10] . Nuovo soggettario. wikidata.org.
  10. [11] . wikidata.org.
  11. [12] . wikidata.org.
  12. [13] . wikidata.org.
  13. [14] . wikidata.org.
  14. [15] . wikidata.org.
  15. [16] . Quora. wikidata.org.
  16. [17] . wikidata.org.
  17. [18] . wikidata.org.
  18. [19] . wikidata.org.
  19. [20] . wikidata.org.
  20. [21] . wikidata.org.
  21. [22] . wikidata.org.
  22. [23] . wikidata.org.
  23. [24] . wikidata.org.

Aggregate / graph-position facts

  1. [1] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [25] . Wikidata sitelinks. wikidata.org.
  3. [26] . 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). sigma-algebra. Retrieved April 11, 2026, from https://4ort.xyz/entity/sigma-algebra
MLA “sigma-algebra.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Apr. 2026, https://4ort.xyz/entity/sigma-algebra.
BibTeX @misc{4ortxyz_sigma-algebra_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{sigma-algebra}}, year = {2026}, url = {https://4ort.xyz/entity/sigma-algebra}, note = {Accessed: 2026-04-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): sigma-algebra — https://4ort.xyz/entity/sigma-algebra (retrieved 2026-04-11)

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