Convergence of the one-dimensional Cahn-Hilliard equation
  We consider the Cahn-Hilliard equation in one space dimension with scaling a small parameter \epsilon and a non-convex potential W. In the limit \espilon \to 0, under the assumption that the initial data are energetically well-prepared, we show the convergence to a Stefan problem. The proof is based on variational methods and exploits the gradient flow structure of the Cahn-Hilliard equation. 
Giovanni Bellettini, Lorenzo Bertini, Mauro Mariani, Matteo Novaga
math.AP