A saturation property for the spectral-Galerkin approximation of a Dirichlet problem in a square

Claudio Canuto, RIcardo H. Nochetto, Rob Stevenson, Marco Verani (9999) A saturation property for the spectral-Galerkin approximation of a Dirichlet problem in a square, In: MODÉLISATION MATHÉMATIQUE ET ANALYSE NUMÉRIQUE, ISSN: 1290-3841