- coordinate normali
- нормальные координаты
Dictionnaire polytechnique italo-russe. 2013.
coordinate normali
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De Sitter space — In mathematics and physics, n dimensional De Sitter space, denoted dS n, is the Lorentzian analog of an n sphere (with its canonical Riemannian metric). It is a maximally symmetric, Lorentzian manifold with constant positive curvature, and is… … Wikipedia
