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real projective plane

a compact non-orientable two-dimensional manifold
Class type of: two-dimensional space, projective plane, real projective space Q633815

Facts

3 properties
Subclass of
two-dimensional space, projective plane, real projective space[1][2][3]
Euler characteristic
1.0[5]
Maintained by WikiProject
WikiProject Mathematics[4]
🏷️ Also known as
en real projective plane cs Reálná projektivní rovina el Πραγματικό προβολικό επίπεδο es plano proyectivo real fi Reaalinen projektiivinen taso fr plan projectif réel he מישור פרויקטיבי ממשי it piano proiettivo reale ja 実射影平面 nl reëel projectief vlak pl płaszczyzna rzutowa rzeczywista pt Plano projetivo real ro plan proiectiv real ru вещественная проективная плоскость uk дійсна проєктивна площина zh 实射影平面
🔖 Identifiers · 4
OpenAlex ID
C37470923
Freebase ID
/m/0253h2
MathWorld ID
RealProjectivePlane
Microsoft Academic ID (discontinued)
37470923

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🔗 Connections
Subclass of 3
two-dimensional space, projective plane, real projective space
Maintained by WikiProject 1
WikiProject Mathematics
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References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [1] ↑ . wikidata.org.
  2. [2] ↑ . wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). real projective plane. Retrieved November 6, 2026, from https://4ort.xyz/entity/real-projective-plane
MLA “real projective plane.” 4ort.xyz Knowledge Graph, 4ort.xyz, 6 Nov. 2026, https://4ort.xyz/entity/real-projective-plane.
BibTeX @misc{4ortxyz_real-projective-plane_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{real projective plane}}, year = {2026}, url = {https://4ort.xyz/entity/real-projective-plane}, note = {Accessed: 2026-11-06}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): real projective plane — https://4ort.xyz/entity/real-projective-plane (retrieved 2026-11-06)

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