Linked from

The 16 pages that link to Projective space, each with the reason it gives.

• Coordinate systemRelated: Projective coordinates represent directions and points at infinity beyond ordinary affine coordinates.

• Equivalence relationRelated: Nonzero vectors define the same projective point when one is a nonzero scalar multiple of another.

• Incidence geometryBroader topic: Its subspace-containment relations extend incidence geometry beyond points and lines.

• Elliptic curveRelated: Projective coordinates include points at infinity needed for the complete curve.

• Riemannian manifoldBroader topic: Its standard Riemannian metric illustrates geometry on a compact quotient space.

• Affine spaceRelated: Projective geometry forgets parallelism that affine spaces retain.

• Quotient spaceBroader topic: Its points identify vectors that differ by a nonzero scaling.

• Algebraic curveRelated: Projective space provides a setting where curves include their points at infinity.

• Projective dualityNarrower topic: Projective duality is defined within projective spaces and their incidence structure.

• Rational pointRelated: Projective coordinates represent rational points up to nonzero scalar multiplication.

• Equivalence classRelated: Nonzero vectors on the same line are identified as one equivalence class.

• Quotient setBroader topic: It is formed by identifying nonzero vectors that lie on the same line.

• Finite geometryNarrower topic: Its finite-field versions are central examples of finite geometry.

• Manin conjectureBroader topic: Its rational points admit a classical height count matching the predicted growth.

• Corrado SegreRelated: Segre investigated configurations and varieties in projective spaces of several dimensions.

• Dieudonné's theoremNarrower topic: The theorem describes which maps between these spaces count as collineations.