Equivalence of Darmois-Israel and Distributional-Methods for Thin Shells   in General Relativity
  A distributional method to solve the Einstein's field equations for thin shells is formulated. The familiar field equations and jump conditions of Darmois-Israel formalism are derived. A carefull analysis of the Bianchi identities shows that, for cases under consideration, they make sense as distributions and lead to jump conditions of Darmois-Israel formalism. 
R. Mansouri (Universitaet Potsdam, Germany, and Sharif University of   Technology, Tehran) and M. Khorrami (University of Te...