Coframe

In mathematics, a coframe or coframe field on a smooth manifold

is a system of one-forms or covectors which form a basis of the cotangent bundle at every point.

[1] In the exterior algebra of

, one has a natural map from

ρ

ρ

ρ

dimensional, a coframe is given by a section

The inverse image under

of the complement of the zero section of

principal bundle over

, which is called the coframe bundle.

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