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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Taub-NUT vacuum ： ウィキペディア英語版 Taub–NUT space The Taub–NUT space (〔McGraw-Hill ''Science & Technology Dictionary'': "Taub NUT space"〕 or ) is an exact solution to Einstein's equations, a model universe formulated in the framework of general relativity. The Taub–NUT metric was found by , and extended to a larger manifold by , whose initials form the "NUT" of "Taub–NUT". Taub's solution is an empty space solution of Einstein's equations with topology R×S3 and metric :$ds^2=-dt^2/U(t)\; +\; 4l^2U(t)(d\backslash psi+\; \backslash cos\backslash theta\; d\backslash phi)^2+(t^2+l^2)(d\backslash theta^2+(\backslash sin\backslash theta)^2d\backslash phi^2)$ where :$U(t)=\backslash frac$ and ''m'' and ''l'' are positive constants. Taub's metric has coordinate singularities at ''U''=0, ''t''=''m''+(m2+''l''2)1/2, and Newman, Tamburino and Unti showed how to extend the metric across these surfaces. ==References== * * 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「Taub–NUT space」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.