Sub-Riemannian geometry (also known as Carnot geometry in France, and non-holonomic Riemannian geometry in Russia) has been a full research domain for fifteen years, with motivations and ramifications in several parts of pure and applied mathematics, namely: control theory class…
* Cercles entre eux * Catalogue de cercles * Droites et cercles * Le cercle dans toutes Ses dimensionsDepuis Ératosthène, Ptolémée, Apollonios ou Archimède, le cercle est, sans aucun doute, l'un des objets géométriques les plus familiers.Compagnon discret de notre quotidien, il …