An $L^\infty $ estimate and a superconvergence result for a Galerkin method for elliptic equations based on tensor products of piecewise polynomials
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R.A.I.R.O. Analyse Numérique, 8 R2 (1974) 61-66
Published online: 01 February 2017
DOI: 10.1051/m2an/197408R200611