lobachevski geometry
1Lobachevski,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. * * * …
2Synthetic geometry — Synthetic or axiomatic geometry is the branch of geometry which makes use of axioms, theorems and logical arguments to draw conclusions, as opposed to analytic and algebraic geometries which use analysis and algebra to perform geometric… …
3Timeline of algebra and geometry — A timeline of algebra and geometryBefore 1000 BC* ca. 2000 BC Scotland, Carved Stone Balls exhibit a variety of symmetries including all of the symmetries of Platonic solids. * 1800 BC Moscow Mathematical Papyrus, findings volume of a frustum *… …
4Inversive ring geometry — In mathematics, inversive ring geometry is the extension to the context of associative rings, of the concepts of projective line, homogeneous coordinates, projective transformations, and cross ratio, concepts usually built upon rings that happen… …
5Timeline of mathematics — A timeline of pure and applied mathematics history. Contents 1 Before 1000 BC 2 1st millennium BC 3 1st millennium AD 4 1000–1500 …
6Isaak 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… …
7Euclid — (c. 330 bc–260 bc) Greek mathematician Euclid is one of the best known and most influential of classical Greek mathematicians but almost nothing is known about his life. He was a founder and member of the academy in Alexandria, and may have been… …
8G. 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… …
9de 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… …
10Coxeter 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 …
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