orthogonal spheres

orthogonal spheres
мат. ортогональные сферы

Большой англо-русский и русско-английский словарь. 2001.

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  • Orthogonal group — Group theory Group theory …   Wikipedia

  • Close-packing of spheres — hcp and fcc close packing of spheres In geometry, close packing of spheres is a dense arrangement of equal spheres in an infinite, regular arrangement (or lattice). Carl Friedrich Gauss proved that the highest average density – that is, the… …   Wikipedia

  • Vector fields on spheres — In mathematics, the discussion of vector fields on spheres was a classical problem of differential topology, beginning with the hairy ball theorem, and early work on the classification of division algebras.Specifically, the question is how many… …   Wikipedia

  • Inversive geometry — Not to be confused with Inversive ring geometry. In geometry, inversive geometry is the study of those properties of figures that are preserved by a generalization of a type of transformation of the Euclidean plane, called inversion. These… …   Wikipedia

  • Lie sphere geometry — is a geometrical theory of planar or spatial geometry in which the fundamental concept is the circle or sphere. It was introduced by Sophus Lie in the nineteenth century. [The definitive modern textbook on Lie sphere geometry is Harvnb|Cecil|1992 …   Wikipedia

  • combinatorics — /keuhm buy neuh tawr iks, tor , kom beuh /, n. (used with singular v.) See combinatorial analysis. * * * Branch of mathematics concerned with the selection, arrangement, and combination of objects chosen from a finite set. The number of possible… …   Universalium

  • Curvilinear coordinates — Curvilinear, affine, and Cartesian coordinates in two dimensional space Curvilinear coordinates are a coordinate system for Euclidean space in which the coordinate lines may be curved. These coordinates may be derived from a set of Cartesian… …   Wikipedia

  • GROUPES (mathématiques) - Groupes classiques et géométrie — Jusque vers 1800, la géométrie dite «élémentaire» est restée à peu de chose près ce qu’elle était dans l’Antiquité, tant dans sa substance que dans ses méthodes (l’invention de la «géométrie analytique» ayant à peu près exclusivement servi à… …   Encyclopédie Universelle

  • n-sphere — 2 sphere wireframe as an orthogonal projection Just as a …   Wikipedia

  • Programme d'Erlangen — Le programme d Erlangen est un programme de recherche mathématique publié par le mathématicien allemand Felix Klein en 1872, dans le mémoire Vergleichende Betrachtungen über neuere geometrische Forschungen (ou « Étude comparée de différentes …   Wikipédia en Français

  • Differential geometry of surfaces — Carl Friedrich Gauss in 1828 In mathematics, the differential geometry of surfaces deals with smooth surfaces with various additional structures, most often, a Riemannian metric. Surfaces have been extensively studied from various perspectives:… …   Wikipedia


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