Betti number

used to distinguish topological spaces based on the connectivity of n-dimensional simplicial complexes
Intangible mathematical_concept Q429593
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Betti number

Summary

Betti number is a mathematical concept[1]. It draws 138 Wikipedia views per month (mathematical_concept category, ranking #129 of 1,007).[2]

Key Facts

  • Betti number's instance of is recorded as mathematical concept[3].
  • Enrico Betti is named after Betti number[4].
  • Betti number's GND ID is recorded as 4231040-4[5].
  • Betti number's subclass of is recorded as non-negative integer[6].
  • Betti number's BNCF Thesaurus ID is recorded as 37203[7].
  • Betti number's Freebase ID is recorded as /m/01yrfb[8].
  • Betti number's Encyclopædia Britannica Online ID is recorded as topic/Betti-number[9].
  • Betti number's studied by is recorded as algebraic topology[10].
  • Betti number's MathWorld ID is recorded as BettiNumber[11].
  • Betti number's nLab ID is recorded as Betti number[12].
  • Betti number's maintained by WikiProject is recorded as WikiProject Mathematics[13].
  • Betti number's Microsoft Academic ID is recorded as 129621563[14].
  • Betti number's Treccani's Enciclopedia della Matematica ID is recorded as numeri-di-betti[15].
  • Betti number's OpenAlex ID is recorded as C129621563[16].
  • Betti number's ScienceDirect topic ID is recorded as mathematics/betti-number[17].

Why It Matters

Betti number draws 138 Wikipedia views per month (mathematical_concept category, ranking #129 of 1,007).[2] It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[18] It is known by 3 alternative names across languages and contexts.[19]

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] . Nuovo soggettario. wikidata.org.
  6. [8] . Freebase Data Dumps. wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.
  15. [17] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [18] . Wikidata sitelinks. wikidata.org.
  3. [19] . 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). Betti number. Retrieved May 3, 2026, from https://4ort.xyz/entity/betti-number
MLA “Betti number.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/betti-number.
BibTeX @misc{4ortxyz_betti-number_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Betti number}}, year = {2026}, url = {https://4ort.xyz/entity/betti-number}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Betti number — https://4ort.xyz/entity/betti-number (retrieved 2026-05-03)

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