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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 P-form electrodynamics ： ウィキペディア英語版 P-form electrodynamics In theoretical physics, p-form electrodynamics is a generalization of Maxwell's theory of electromagnetism. ==Ordinary (viz. one-form) Abelian electrodynamics== We have a one-form A, a gauge symmetry :$\backslash mathbf\; \backslash rightarrow\; \backslash mathbf\; +\; d\backslash alpha$ where α is any arbitrary fixed 0-form and d is the exterior derivative, and a gauge-invariant vector current J with density 1 satisfying the continuity equation :$d$ *\mathbf=0 where * is the Hodge dual. Alternatively, we may express J as a (''d'' − 1)-closed form, but we do not consider that case here. F is a gauge invariant 2-form defined as the exterior derivative $\backslash mathbf=d\backslash mathbf$. A satisfies the equation of motion :$d$ *\mathbf= *\mathbf (this equation obviously implies the continuity equation). This can be derived from the action :$S=\backslash int\_M\; \backslash left($ *\mathbf - \mathbf \wedge *\mathbf\right ) where M is the spacetime manifold. 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「P-form electrodynamics」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.