projective geometry

Fetched 2026-10-26 (cache).

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Noun

1. {{lb|en|mathematics}} The branch of [[mathematics]] that investigates those [[properties]] of [[figure]]s that are [[invariant]] under [[homography|homographies]], special kinds of [[space]]s called [[projective space]]s, and the geometric [[structure]]s that inhabit them.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.