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sphere eversion

topological operation of turning a sphere inside-out without creasing
Thing general Q565198
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sphere eversion

Summary

sphere eversion ranks in the top 2% of general entities by monthly Wikipedia readership (247 views/month).[1]

Key Facts

  • sphere eversion's video is recorded as Evshort2.webm[2].
  • sphere eversion's video is recorded as Thurston Sphere Eversion.webm[3].
  • sphere eversion's video is recorded as Minimax Sphere Eversion.webm[4].
  • sphere eversion's image is recorded as Thurston Sphere Eversion.jpg[5].
  • sphere eversion's subclass of is recorded as regular homotopy[6].
  • sphere eversion's Commons category is recorded as Sphere eversion[7].
  • sphere eversion's Freebase ID is recorded as /m/02fcwz[8].
  • sphere eversion's MathWorld ID is recorded as SphereEversion[9].
  • sphere eversion's nLab ID is recorded as sphere eversion[10].
  • sphere eversion's maintained by WikiProject is recorded as WikiProject Mathematics[11].
  • sphere eversion's Microsoft Academic ID is recorded as 2777362940[12].

Why It Matters

sphere eversion ranks in the top 2% of general entities by monthly Wikipedia readership (247 views/month).[1] It has Wikipedia articles in 9 language editions, a strong signal of global cultural recognition.[13] It is known by 6 alternative names across languages and contexts.[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] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . Freebase Data Dumps. wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [13] ↑ . Wikidata sitelinks. wikidata.org.
  3. [14] ↑ . 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). sphere eversion. Retrieved April 10, 2026, from https://4ort.xyz/entity/sphere-eversion
MLA “sphere eversion.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/sphere-eversion.
BibTeX @misc{4ortxyz_sphere-eversion_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{sphere eversion}}, year = {2026}, url = {https://4ort.xyz/entity/sphere-eversion}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): sphere eversion — https://4ort.xyz/entity/sphere-eversion (retrieved 2026-04-10)

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