Contracted Bianchi identities
= Contracted Bianchi identities
{wiki=Contracted_Bianchi_identities}
The contracted Bianchi identities are a set of identities in differential geometry and general relativity that express relationships between the curvature tensor and other related geometric quantities. They arise from the properties of the Riemann curvature tensor, which encodes information about the curvature of a differential manifold.