Category:Projective geometry

• Projective geometry

*

• Projective differential geometry

0–9

• 3D projection

A

• Affine Grassmannian (manifold)
• Algebraic geometry of projective spaces
• Arc (projective geometry)

B

• Bloch sphere
• Blocking set

C

• Cayley plane
• Cayley–Klein metric
• Circular points at infinity
• Circular transform
• Collineation
• Complete quadrangle
• Complex projective plane
• Complex projective space
• Continuous geometry
• Correlation (projective geometry)
• Cross-ratio

D

• Desarguesian plane
• Desmic system
• Differential invariant
• Direct linear transformation
• Dual curve
• Duality (projective geometry)

E

• Eleven-point conic
• Elliptic transform
• Euler sequence

F

• Fano plane
• Five points determine a conic
• Fubini–Study metric

G

• Geometric tomography
• Gnomonic projection
• Grassmannian

H

• Hall plane
• Harmonic cross-ratio
• Hesse's principle of transfer
• Hesse's theorem
• Hessian pair
• Homogeneous coordinates
• Homography
• Hughes plane
• Hyperplane
• Hyperplane at infinity

I

• Imaginary curve
• Imaginary point
• Incidence (geometry)
• Inverse curve

K

• Klein quadric

L

• Laguerre–Forsyth invariant
• Lénárt sphere
• Line at infinity
• Linear fractional transformation

M

• Maximal arc
• Möbius transformation
• Moufang plane

N

• Near-field (mathematics)
• Nine-point conic
• Non-Desarguesian plane

O

• Oriented projective geometry
• Oval (projective plane)
• Ovoid (projective geometry)

P

• Pappus's hexagon theorem
• Pencil (mathematics)
• Pentagram map
• Perspective (geometry)
• Perspectivity
• PG(3,2)
• Planar ternary ring
• Plane at infinity
• Plücker coordinates
• Point at infinity
• Polar hypersurface
• Polar space
• Pole and polar
• Projective cone
• Projective frame
• Projective harmonic conjugate
• Projective line
• Projective line over a ring
• Projective linear group
• Projective orthogonal group
• Projective plane
• Projective range
• Projective space
• Projective transformation
• Projective variety
• Projectively extended real line
• Projectivization
• PSL(2,7)

Q

• Quadric
• Quasifield
• Quaternionic projective space
• Qvist's theorem

R

• Real point
• Real projective line
• Real projective space
• Riemann sphere

S

• Schema for horizontal dials
• Schlegel diagram
• Schwarzian derivative
• Segre embedding
• Segre's theorem
• Semilinear map
• SL2(R)
• Smooth projective plane
• Special conformal transformation
• Stereographic projection

T

• Ternary equivalence relation
• Translation plane
• Tropical projective space

U

• Unital (geometry)

V

• Visual hull
• Von Staudt conic

W

• W-curve