KnowraProjective transformationLinked fromLinked fromThe 18 pages that link to Projective transformation, each with the reason it gives.All 18Broader topic 1Related 8Narrower topic 3Compared with 6Möbius transformationNarrower topic: Möbius transformations are the projective transformations of the complex projective line.Cross-ratioNarrower topic: Invariance under these maps is the defining property of the cross-ratio.Thomsen's theoremNarrower topic: Each perspectivity in the six-step construction induces a projectivity between lines.