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20170052_0009

© Cyril FRESILLON / IHP / CNRS Images

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20170052_0009

Modèle en carton représentant des cercles de courbure en un point hyperbolique

Cardboard model representing circles of curvature in a hyperbolic point, created by C. Tesch in 1894. It forms part of a collection of mathematical objects at the Institut Henri Poincaré (IHP).

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