Poincaré sphere, often spelled Poincare sphere (ie without the accent) may refer to:
* Poincaré sphere, in polarimetry, a visualization of polarized light
* Poincaré homology sphere, in mathematics, an example of a homology sphere
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Poincaré conjecture — In mathematics, the Poincaré conjecture (French, pronounced|pwɛ̃kaʀe) [cite encyclopedia | encyclopedia=The American Heritage Dictionary of the English Language | title=Poincaré, Jules Henri | url=http://www.bartleby.com/61/3/P0400300.html |… … Wikipedia
Poincaré disk model — Poincaré disc model of great rhombitruncated {3,7} tiling … Wikipedia
POINCARÉ (H.) — Considéré comme le plus grand mathématicien de son temps, Henri Poincaré est l’un des derniers représentants de cette science à en avoir eu une totale maîtrise dans l’ensemble des domaines, y compris dans ses applications en astronomie et en… … Encyclopédie Universelle
Sphère exotique — En mathématiques, et plus précisément en topologie différentielle, une sphère exotique est une variété différentielle M qui est homéomorphe, mais non difféomorphe, à la n sphère euclidienne standard. Autrement dit, M est une sphère du point de… … Wikipédia en Français
Poincaré , (Jules) Henri — (1854–1912) French mathematician and philosopher of science Poincaré was born at Nancy in eastern France and studied at the Ecole Polytechnique and the School of Mines. At first he had intended to become an engineer, but fortunately his… … Scientists
Poincaré–Steklov operator — In mathematics, a Poincaré–Steklov operator (after Henri Poincaré and Vladimir Steklov) maps the values of one boundary condition of the solution of an elliptic partial differential equation in a domain to the values of another boundary condition … Wikipedia
Poincaré, Henri — ▪ French mathematician in full Jules Henri Poincaré born April 29, 1854, Nancy, France died July 17, 1912, Paris French mathematician, one of the greatest mathematicians and mathematical physicists at the end of 19th century. He made a series… … Universalium
Sphère (topologie) — Pour les articles homonymes, voir Sphère (homonymie). En topologie, une sphère est une généralisation de la notion de sphère géométrique. Il s agit d un espace topologique homéomorphe à l une des hypersphères, c est à dire l ensemble des points à … Wikipédia en Français
Poincaré–Hopf theorem — In mathematics, the Poincaré–Hopf theorem (also known as the Poincaré–Hopf index formula, Poincaré–Hopf index theorem, or Hopf index theorem) is an important theorem in differential topology. It is named after Henri Poincaré and Heinz Hopf.The… … Wikipedia
Sphere-world — The idea of a sphere world was constructed by Henri Poincaré while pursuing his argument for conventionalism (see philosophy of space and time), offered a thought experiment about a sphere with strange properties.Poincaré asks us to imagine a… … Wikipedia
