Notes on Eduard Study’s paper “Contributions to non-Euclidean geometry I”
Annette A’Campo-NeuenUniversität Basel, Switzerland
Athanase PapadopoulosUniversité de Strasbourg, France
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This is a commentary on the paper "Contributions to non-Euclidean geometry I" by Eduard Study, published in 1907, in which the author lays the foundations of the exterior geometry of hyperbolic space and what is called today de Sitter geometry.