翻訳と辞書 Words near each other ・ Congrhynchus talabonoides ・ Congridae ・ Congrier ・ Congrinae ・ Congriscus ・ Congriscus maldivensis ・ Congriscus marquesaensis ・ Congriscus megastomus ・ Congro Volcanic Fissural System ・ Congrogadus subducens ・ Congrosoma evermanni ・ Congrove Field and The Tumps ・ Congrua ・ Congrua portio ・ Congruence ・ Congruence (general relativity) ・ Congruence (geometry) ・ Congruence (manifolds) ・ Congruence bias ・ Congruence coefficient ・ Congruence ideal ・ Congruence lattice problem ・ Congruence of squares ・ Congruence of triangles ・ Congruence principle ・ Congruence relation ・ Congruence subgroup ・ Congruence-permutable algebra ・ Congruent isoscelizers point ・ Congruent melting 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 Congruence (general relativity) ： ウィキペディア英語版 Congruence (general relativity) In general relativity, a congruence (more properly, a congruence of curves) is the set of integral curves of a (nowhere vanishing) vector field in a four-dimensional Lorentzian manifold which is interpreted physically as a model of spacetime. Often this manifold will be taken to be an exact or approximate solution to the Einstein field equation. ==Types of congruences== Congruences generated by nowhere vanishing timelike, null, or spacelike vector fields are called ''timelike'', ''null'', or ''spacelike'' respectively. A congruence is called a ''geodesic congruence'' if the tangent vector field $\backslash vec$ has vanishing covariant derivative, $\backslash nabla\_\; =\; 0$. 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「Congruence (general relativity)」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.