Centro-affine geometry

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The branch of affine geometry in which one studies invariants of centro-affine transformations: . Centro-affine transformations leave one point (the centre) fixed. In centro-affine geometry there is complete duality: To every proposition concerning points corresponds the same proposition concerning hyperplanes.

How to Cite This Entry:
Centro-affine geometry. L.A. Sidorov (originator), Encyclopedia of Mathematics. URL:
This text originally appeared in Encyclopedia of Mathematics - ISBN 1402006098