Hawaiian earring

one-point compactification of a countably infinite family of open intervals
Thing compact_space Q5684591
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Hawaiian earring

Summary

Hawaiian earring is a compact space[1]. It draws 30 Wikipedia views per month (compact_space category, ranking #1 of 1).[2]

Key Facts

  • Hawaiian earring's image is recorded as Hawaiian earrings.svg[3].
  • Hawaiian earring's image is recorded as Hawaiian earring to 256.svg[4].
  • Hawaiian earring's instance of is recorded as compact space[5].
  • Hawaiian earring's instance of is recorded as Hausdorff space[6].
  • Hawaiian earring's instance of is recorded as completely metrizable space[7].
  • Hawaiian earring's instance of is recorded as path-connected space[8].
  • Hawaii is named after Hawaiian earring[9].
  • earring is named after Hawaiian earring[10].
  • Hawaiian earring's Commons category is recorded as Hawaiian earrings[11].
  • Hawaiian earring's Freebase ID is recorded as /m/03p1qg[12].
  • Hawaiian earring's defining formula is recorded as \bigcup _{n=1}^\infty\left{(x,y)\in \mathbb R^2\colon (x-1/n)^2+y^2=1/n^2\right}[13].
  • Hawaiian earring's maintained by WikiProject is recorded as WikiProject Mathematics[14].
  • Hawaiian earring's Microsoft Academic ID is recorded as 2777689975[15].

Why It Matters

Hawaiian earring draws 30 Wikipedia views per month (compact_space category, ranking #1 of 1).[2] It has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.[16]

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] . 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.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [16] . 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). Hawaiian earring. Retrieved May 3, 2026, from https://4ort.xyz/entity/hawaiian-earring
MLA “Hawaiian earring.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hawaiian-earring.
BibTeX @misc{4ortxyz_hawaiian-earring_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Hawaiian earring}}, year = {2026}, url = {https://4ort.xyz/entity/hawaiian-earring}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Hawaiian earring — https://4ort.xyz/entity/hawaiian-earring (retrieved 2026-05-03)

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