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This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-04-27 and was most recently seen on 2026-04-27.
The tetrad formalism is an approach to general relativity that generalizes the choice of basis for the tangent bundle from a coordinate basis to the less restrictive choice of a local basis, i.e. a locally defined set of four linearly independent vector fields called a tetrad or vierbein. It is a special case of the more general idea of a vielbein formalism, which is set in (pseudo-)Riemannian geometry. This article as currently written makes frequent mention of general relativity; however, almost everything it says is equally applicable to (pseudo-)Riemannian manifolds in general, and even to spin manifolds. Most statements hold by substituting arbitrary for . In German, "vier" translates to "four", "viel" to "many", and "bein" to "leg".
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