Plane Symmetric, Cylindrically Symmetric and Spherically Symmetric   Vacuum Solutions of Einstein Field Equations
  In this paper we present Plane symmetric, Cylindrically Symmetric and Spherically Symmetric Black hole or Vacuum solutions of Einstein Field Equations(EFEs). Some of these solutions are new which we have not seen in the literature. This calculation will help us in understanding the gravitational wave and gravitational wave spacetimes. 
Farhad Ali
physics.gen-ph