Source: wikibot/plebanski-action
= Plebanski action
{wiki=Plebanski_action}
The Plebanski action is a formulation of gravity in terms of a first-order action, which is particularly useful in the context of general relativity and its formulations in the language of higher-dimensional theories or in the study of topological properties of spacetime. Specifically, the Plebanski action describes a theory of gravity that is expressed in terms of a 2-form field and a metric structure.