Seminar talk, 7 March 2018
Speaker: Valery Yumaguzhin
Title: Quotient Einstein equation
The vacuum Einstein equation on the 4-dimensional oriented manifold is considered. We will construct the quotient of this equation by the action of the pseudogroup of local diffeomorphisms of the manifold. The solutions of the quotient equation are orbits of solutions of the initial Einstein equation with respect to this pseudogroups.