Lobachevski geometry

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• Lobachevski,Nikolai Ivanovich — Lo·ba·chev·ski (lō bə chĕfʹskē, lə bə chyĕfʹ ), Nikolai Ivanovich. 1792 1856. Russian mathematician who developed (1826) a system of non Euclidean geometry. * * * …   Universalium

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• Isaak Yaglom — Isaak Moiseevich Yaglom [His last name is sometimes transliterated as Jaglom , Iaglom , IAglom , or I Aglom . The double capitalization in the latter cases indicates that IA transliterates a single capital letter Я (Ya). ] ( ru. Иссак Моисеевич… …   Wikipedia

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• G. B. Halsted — George Bruce Halsted (November 25, 1853 – March 16, 1922) was a mathematician who explored foundations of geometry and introduced Non Euclidean geometry into the United States through his own work and his many important translations. Especially… …   Wikipedia

• de Sitter invariant special relativity — In mathematical physics, de Sitter invariant special relativity is the speculative idea that the fundamental symmetry group of spacetime is the Indefinite orthogonal group SO(4,1), that of de Sitter space. In the standard theory of General… …   Wikipedia

• Coxeter group — In mathematics, a Coxeter group, named after H.S.M. Coxeter, is an abstract group that admits a formal description in terms of mirror symmetries. Indeed, the finite Coxeter groups are precisely the finite Euclidean reflection groups; the symmetry …   Wikipedia

• Geometría — Alegoría de la Geometría. La Geometría (del latín geometrĭa, que proviene del idioma griego γεωμετρία, geo tierra y metria medida), es una rama de la matemática que se ocupa del estudio de las propiedades de las figuras geométricas en el plano o… …   Wikipedia Español