Atiyah–Singer index theorem

theorem that the difference between the dimensions of the kernel and cokernel of a differential operator on a manifold is the integral of a characteristic class
Intangible theorem Q755991
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Atiyah–Singer index theorem

Summary

Atiyah–Singer index theorem is a theorem[1]. It ranks in the top 9% of theorem entities by monthly Wikipedia readership (195 views/month).[2]

Key Facts

  • Atiyah–Singer index theorem's instance of is recorded as theorem[3].
  • Atiyah–Singer index theorem's subclass of is recorded as Q114213185[4].
  • Atiyah–Singer index theorem's part of is recorded as list of theorems[5].
  • Atiyah–Singer index theorem's Freebase ID is recorded as /m/01v_mw[6].
  • Atiyah–Singer index theorem's proved by is recorded as Michael Atiyah[7].
  • Atiyah–Singer index theorem's proved by is recorded as Isadore Singer[8].
  • Atiyah–Singer index theorem's defining formula is recorded as \dim\ker D - \dim\operatorname{coker}D = \int_M \operatorname{ch}(D)\operatorname{Td}(M)[9].
  • Atiyah–Singer index theorem's MathWorld ID is recorded as Atiyah-SingerIndexTheorem[10].
  • Atiyah–Singer index theorem's nLab ID is recorded as Atiyah-Singer index theorem[11].
  • Atiyah–Singer index theorem's on focus list of Wikimedia project is recorded as Wikipedia:Vital articles/Level/4[12].
  • Atiyah–Singer index theorem's maintained by WikiProject is recorded as WikiProject Mathematics[13].
  • Atiyah–Singer index theorem's Microsoft Academic ID is recorded as 197617374[14].
  • Atiyah–Singer index theorem's Lex ID is recorded as Atiyah-Singers_indekssætning[15].
  • Atiyah–Singer index theorem's OpenAlex ID is recorded as C197617374[16].
  • Atiyah–Singer index theorem's ScienceDirect topic ID is recorded as mathematics/atiyah-singer-index-theorem[17].

Why It Matters

Atiyah–Singer index theorem ranks in the top 9% of theorem entities by monthly Wikipedia readership (195 views/month).[2] It has Wikipedia articles in 17 language editions, a strong signal of global cultural recognition.[18] It is known by 16 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] . Freebase Data Dumps. wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . 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). Atiyah–Singer index theorem. Retrieved May 3, 2026, from https://4ort.xyz/entity/atiyah-singer-index-theorem
MLA “Atiyah–Singer index theorem.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/atiyah-singer-index-theorem.
BibTeX @misc{4ortxyz_atiyah-singer-index-theorem_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Atiyah–Singer index theorem}}, year = {2026}, url = {https://4ort.xyz/entity/atiyah-singer-index-theorem}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Atiyah–Singer index theorem — https://4ort.xyz/entity/atiyah-singer-index-theorem (retrieved 2026-05-03)

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