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H-space

topological space with a multiplication that is associative and unital up to homotopy
Thing general Q1562471
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H-space

Summary

H-space ranks in the top 2% of general entities by monthly Wikipedia readership (40 views/month).[1]

Key Facts

  • Heinz Hopf is named after H-space[2].
  • H-space's subclass of is recorded as topological space[3].
  • H-space's opposite of is recorded as co-H-space[4].
  • H-space's Freebase ID is recorded as /m/02v70g[5].
  • H-space's studied by is recorded as homotopy theory[6].
  • H-space's MathWorld ID is recorded as H-Space[7].
  • H-space's nLab ID is recorded as H-space[8].
  • H-space's maintained by WikiProject is recorded as WikiProject Mathematics[9].
  • H-space's Microsoft Academic ID is recorded as 87098989[10].
  • H-space's Encyclopedia of Mathematics article ID is recorded as H-space[11].
  • H-space's PlanetMath ID is recorded as Hspace[12].
  • H-space's Group Properties article ID is recorded as H-group[13].

Why It Matters

H-space ranks in the top 2% of general entities by monthly Wikipedia readership (40 views/month).[1] H-space has Wikipedia articles in 7 language editions, a strong signal of global cultural recognition.[14]

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] ↑ . Freebase Data Dumps. wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [14] ↑ . Wikidata sitelinks. 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). H-space. Retrieved April 10, 2026, from https://4ort.xyz/entity/h-space
MLA “H-space.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/h-space.
BibTeX @misc{4ortxyz_h-space_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{H-space}}, year = {2026}, url = {https://4ort.xyz/entity/h-space}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): H-space — https://4ort.xyz/entity/h-space (retrieved 2026-04-10)

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