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In the mathematical field of differential geometry, the exterior covariant derivative is an extension of the notion of exterior derivative to the setting of a differentiable principal bundle or vector bundle with a connection.

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  • Exterior covariant derivative (en)
  • 外共变导数 (zh)
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  • In the mathematical field of differential geometry, the exterior covariant derivative is an extension of the notion of exterior derivative to the setting of a differentiable principal bundle or vector bundle with a connection. (en)
  • 在数学中,外共变导数(exterior covariant derivative),时或称为共变外导数(covariant exterior derivative),是中一个非常有用的概念,它可能将利用主联络的公式化简。 设 P → M 是光滑流形 M 上一个主 G-丛。如果 是 P 上一个张量性 k-形式,则其外共变导数定义为: 这里 h 表示到水平子空间的投影, 由联络定义,其核为该纤维丛的切丛的 (铅直子空间)。这里 是 P 上任何向量场。Dφ 是 P 上一个张量性 k+1 形式。 不像通常的外导数的平方是 0,我们有 这里 表示曲率形式。特别的 对消没。 (zh)
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  • Taylor (en)
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  • Section 1.12 (en)
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