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%ما هو (من)٪ 1 - تعريف
Ricci curvature
2-TENSOR OBTAINED AS A CONTRACTION OF THE RIEMAN CURVATURE 4-TENSOR ON A RIEMANNIAN MANIFOLD (OR, MORE GENERALLY, A SMOOTH MANIFOLD EQUIPPED WITH AFFINE CONNECTION)
Ricci-curvature; Ricci curvature tensor; Ricci tensor; Trace-free Ricci tensor; Ricci form; Ricci Curvature
In differential geometry, the Ricci curvature tensor, named after Gregorio Ricci-Curbastro, is a geometric object which is determined by a choice of Riemannian or pseudo-Riemannian metric on a manifold. It can be considered, broadly, as a measure of the degree to which the geometry of a given metric tensor differs locally from that of ordinary Euclidean space or pseudo-Euclidean space.
Ricci-flat manifold
RIEMANNIAN MANIFOLDS WHOSE RICCHI CURVATURE VANISHES
Ricci-flat; Ricci flat; Ricci-flat metric; Ricci-flat condition
In the mathematical field of differential geometry, Ricci-flatness is a condition on the curvature of a Riemannian manifold. Ricci-flat manifolds are a special kind of Einstein manifold.
Ulysses Ricci
![Ricci's signature from [[Corrado Parducci]]'s apprenticeship papers](https://commons.wikimedia.org/wiki/Special:FilePath/Ricci signature.jpg?width=200 "Ricci's signature from [[Corrado Parducci]]'s apprenticeship papers")
AMERICAN ARTIST
Ulyssees Ricci
Ulysses Anthony Ricci (1888–1960) was an American sculptor known primarily for his architectural sculpture. Born in New York City, Ricci was an apprentice at the Perth Amboy Terra Cotta Works in New Jersey from 1902 to 1906.
أمثلة من مجموعة نصية لـ٪ 1
1. Belgian designer Olivier Theyskens has made remarkably light work of rejuvenating the Nina Ricci brand since his appointment last year.
2. Reese Witherspoon‘s strapless Nina Ricci with a tiered bottom was a deep purple, and Naomi Watts‘ Escada gown was yellow with a sapphire blue sash.
3. PARIS –– The Paris ready–to–wear shows ended Sunday with a celebrity–packed show at Louis Vuitton, a critically acclaimed display from Lanvin and a poetic collection at Nina Ricci.
4. Jennifer Lopez dresses in white hot style. more photos» Celebs opted for dresses that reflected their spirits: Reese Witherspoon chose a classic and elegant strapless Nina Ricci for the Academy Awards; Jennifer Lopez wore a sexy deep–V, cut–out Versace to an event with Donatella Versace; and Halle Berry sparkled in a luxurious gold number from Elie Saab.
5. "I certainly would not recommend these shoes." The Berardi shoes were joined on the season‘s catwalks by stilt–like sandals from Alexander McQueen, Nina Ricci heels shaped like a bear‘s claw and Yves Saint Laurent strappy sandals with a reed–thin metal sole.