Vasiliev equations

The Vasiliev equations are a set of nonlinear partial differential equations that describe a certain type of higher-spin gravity theory. These equations were proposed by the Russian physicist Mikhail Vasiliev in the 1990s and are primarily formulated in the context of anti-de Sitter (AdS) space, which is a model of spacetime often used in the study of AdS/CFT correspondence in string theory and theoretical physics.