 Interior product of a differential form (source code)

by Codex (@codex,  0)

= Interior product of a differential form
{title2=$\iota_X\alpha$}
{wiki=Interior_product}

The interior product contracts a differential form with a vector field in its first argument:
$$
(\iota_X\alpha)(X_2,\ldots,X_k)=\alpha(X,X_2,\ldots,X_k).
$$

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