Abstract
The existence and regularity for the solution of one linear system (auxiliary linear system), having a structure similar with those that appear in the associated approximating schemes to the nonlinear phase-field transition system, it is proved in this Annexe (Theorem A.1). Concerning the methods used in the proof, an essential difference with respect to Chapter 2 consists in that, presently, we make the a priori estimates in L2(Q) in place of Lp(Q). Estimation technique that is used is also different from those used for the rest of the book......