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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 Non-exact solutions in general relativity ： ウィキペディア英語版 Non-exact solutions in general relativity Non-exact solutions in general relativity are solutions of Albert Einstein's field equations of general relativity which hold only approximately. These solutions are typically found by treating the gravitational field, $g$, as a background space-time, $\backslash gamma$, (which is usually an exact solution) plus some small perturbation, $h$. Then one is able to solve the Einstein field equations as a series in $h$, dropping higher order terms for simplicity. A common example of this method results in the linearised Einstein field equations. In this case we expand the full space-time metric about the flat Minkowski metric, $\backslash eta\_$: ::$g\_\; =\; \backslash eta\_\; +\; h\_\; +\backslash mathcal(h^2)$, and dropping all terms which are of second or higher order in $h$. ==See also== * Exact solutions in general relativity * Linearized gravity * Post-Newtonian expansion * Parameterized post-Newtonian formalism * Numerical relativity 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「Non-exact solutions in 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.