= Palatini variation
{wiki=Palatini_variation}
The Palatini variation, often discussed in the context of the Einstein-Hilbert action in general relativity, refers to a particular formulation of the variational principle from which the equations of motion for a gravitational field can be derived. In general relativity, one can employ different approaches to derive the field equations, and one such approach is the Palatini formalism, which differs from the more common metric formulation.
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