A collineation which transforms every one-dimensional form projectively. Any collineation which transforms one range into a projectively related range is a projective collineation. Every perspective collineation is a projective collineation.
See also
Collineation, Elation, Geometric Homology, Perspective Collineation
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References
Coxeter, H. S. M. Introduction to Geometry, 2nd ed. New York: Wiley, pp. 247-248, 1969.
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Cite this as:
Weisstein, Eric W. "Projective Collineation." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/ProjectiveCollineation.html