翻訳と辞書 Words near each other ・ Pseudo-monotone operator ・ Pseudo-Nero ・ Pseudo-nitzschia ・ Pseudo-octave ・ Pseudo-operation ・ Pseudo-order ・ Pseudo-oxocarbon anion ・ Pseudo-penis ・ Pseudo-Philo ・ Pseudo-Phocylides ・ Pseudo-photograph ・ Pseudo-Plutarch ・ Pseudo-polynomial time ・ Pseudo-random number sampling ・ Pseudo-reductive group ・ Pseudo-Riemannian manifold ・ Pseudo-ring ・ Pseudo-runes ・ Pseudo-scholarship ・ Pseudo-Scymnus ・ Pseudo-secularism ・ Pseudo-Seneca ・ Pseudo-Simon ・ Pseudo-Sophronius ・ Pseudo-spectral method ・ Pseudo-squeeze ・ Pseudo-Tertullian ・ Pseudo-top-level domain ・ Pseudo-transparency ・ Pseudo-uniform polyhedron Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pseudo-Riemannian manifold ： ウィキペディア英語版 Pseudo-Riemannian manifold In differential geometry, a pseudo-Riemannian manifold〔, p. 172.〕〔, p. 208〕 (also called a semi-Riemannian manifold) is a generalization of a Riemannian manifold in which the metric tensor need not be positive-definite. Instead a weaker condition of nondegeneracy is imposed on the metric tensor. Every tangent space of a pseudo-Riemannian manifold is a pseudo-Euclidean space described by an isotropic quadratic form. A special case of great importance to general relativity is a Lorentzian manifold, in which one dimension has a sign opposite to that of the rest. This allows tangent vectors to be classified into timelike, null, and spacelike. Spacetime can be modeled as a 4-dimensional Lorentzian manifold. == Introduction == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pseudo-Riemannian manifold」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.