[1] The Quadratic transformation leaves invariant the orthogonal bundle II(c

[2] In the case of a bundle I(c

[3] In the case of a bundle I(c

[4] In both cases [2] and [3] the parabolas occur when line L is parallel to the line of centers of bundle I(c

DesarguesInvolution.html

ElevenPointConic.html

Polar.html

Quadratic_Transformation.html

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