リッチテンソル
1. Ricci curvatureIn differential geometry, the Ricci curvature tensor, named after Gregorio Ricci-Curbastro, represents the amount by which the volume element of a geodesic ball in a curved Riemannian manifold deviates from that of the standard ball in Euclidean space. As such, it provides one way of measuring the degree to which the geometry determined by a given Riemannian metric might differ from that of ordinary Euclidean n-space.
Read “Ricci curvature” on English Wikipedia
Read “リッチテンソル” on Japanese Wikipedia
Read “Ricci curvature” on DBpedia
Read “Ricci curvature” on English Wikipedia
Read “リッチテンソル” on Japanese Wikipedia
Read “Ricci curvature” on DBpedia
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