real projective plane
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English[edit]
Noun[edit]
real projective plane (plural real projective planes)
- (geometry) 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”.[1] Equivalently, a sphere in which pairs of antipodal points are considered as “points” and great circles are considered as “lines”.
Hypernyms[edit]
References[edit]
- ^ Garrett Birkhoff with Saunders Mac Lane (1953) A Survey Of Modern Algebra, Revised edition, U.S.A.: The Macmillan Company, published 1960, §IX.14, page 294