real projective planes

A form of real projective plane — A three-dimensional vector space over the field of real numbers in which one-dimensional linear subspaces are considered as “points” and two-dimensional linear subspaces are considered as “lines”. Equivalently, a sphere in which pairs of antipodal points are considered as “points” and great circles are considered as “lines”.

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Meanings

noun
  1. pluralplural of real projective plane
Cite this entry
APA

real projective planes. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/real%20projective%20planes

MLA

“real projective planes.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/real%20projective%20planes. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “real projective planes,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/real%20projective%20planes.

Source: real projective planes on Wiktionary, CC BY-SA 4.0.