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  1. In mathematics, hyperbolic geometry (also called Lobachevskian geometry or Bolyai – Lobachevskian geometry) is a non-Euclidean geometry. The parallel postulate of Euclidean geometry is replaced with:

  2. Fue uno de los primeros matemáticos que aplicó un tratamiento crítico a los postulados fundamentales de la geometría euclidiana . Biografía. Celebración anual en Kazán del aniversario del nacimiento de Lobachevski, 1 de diciembre de 2011. Lobachevski nació en Rusia el 1 de diciembre de 1792. Estudió en el gymnasium de Kazán desde 1802 hasta 1807.

  3. Consequently, hyperbolic geometry is called Lobachevskian or Bolyai-Lobachevskian geometry, as both mathematicians, independent of each other, are the basic authors of non-Euclidean geometry.

  4. 5 de jun. de 2020 · Like elliptic geometry, Lobachevskii geometry is the geometry of a Riemannian space of constant curvature. The origin of the creation of Lobachevskii geometry was the problem of parallels, that is, attempts to prove Euclid's fifth postulate concerning parallels.

  5. 1 de dic. de 2011 · Nikolai Lobachevsky published his work on non-Euclidean geometry, the first account of the subject to appear in print. View seven larger pictures. Biography.

  6. Nikolay Ivanovich Lobachevsky (born Dec. 1 [Nov. 20, Old Style], 1792, Nizhny Novgorod, Russia—died Feb. 24 [Feb. 12, Old Style], 1856, Kazan) was a Russian mathematician and founder of non-Euclidean geometry, which he developed independently of János Bolyai and Carl Gauss.