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Pontryagin number

characteristic number obtained from Pontrjagin classes
Intangible mathematical_concept Q4516320
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Pontryagin number

Summary

Pontryagin number is a mathematical concept[1].

Key Facts

  • Pontryagin number's instance of is recorded as mathematical concept[2].
  • Lev Pontryagin is named after Pontryagin number[3].
  • Pontryagin number's maintained by WikiProject is recorded as WikiProject Mathematics[4].

Body

Definition and Type

Pontryagin number's instance of is recorded as mathematical concept[2].

Origins

Lev Pontryagin is named after Pontryagin number[3].

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.

Class ancestry

  1. [1] ↑ . Wikidata. 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). Pontryagin number. Retrieved May 3, 2026, from https://4ort.xyz/entity/pontryagin-number
MLA “Pontryagin number.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/pontryagin-number.
BibTeX @misc{4ortxyz_pontryagin-number_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Pontryagin number}}, year = {2026}, url = {https://4ort.xyz/entity/pontryagin-number}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Pontryagin number — https://4ort.xyz/entity/pontryagin-number (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 6w ago · Charp238 · 2026-07-16 view diff on Wikidata ↗
    Imported from → —
    Maintained by wikiproject → WikiProject Mathematics
    Google knowledge graph id → /g/12338k8t
    Defining formula → p_{i_{1}}\ldots p_{i_{r}}[E]:=\langle p_{i_{1}}(E)\smile \ldots \smile p_{i_{r}}
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P2534]]: p_{i_{1}}\ldots p_{i_{r}}[E]:=\langle p_{i_{1}}(E)\smile \ldots \smile p_{i_{r}}(E),[M]\rangle \in \mathbb Z"
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