1. MASTER, École nationale supérieure de chimie et de physique de Bordeaux, 16, av Pey Berland, 33607 Pessac cedex, France;2. IMFT (UMR 5460), Université Paul Sabatier, Toulouse, France;3. IMFT (UMR 5460), CNRS, Toulouse, France
Abstract:
In this Note we describe a preconditionner for iteratively solving the linear system arising from the discretization of a general nonseparable elliptic problem by spectral element method. This preconditionner is constructed from approximating the original problem with the closest (in some sense) separable elliptic problem. A direct method is then used to invert the preconditionner. To cite this article: M. Azaïez et al., C. R. Mecanique 331 (2003).