"Partial differential equations." . . "Numerical integration." . . . . "Équations différentielles hyperboliques Solutions numériques." . . "Approximation(mathematics)" . . "Calculus of variations." . . "WISCONSIN UNIV MADISON MATHEMATICS RESEARCH CENTER." . . "Theorems." . . "Théorie de l'approximation." . . . . . "A technical method of approximating the Galerkin approximation to solutions of parabolic and hyperbolic equations can be based on a finite sequence of elliptic projections. The resulting function is called a quasi-projection, and it is used to study superconvergence phenomena associated with the Galerkin procedures."@en . . . . . . . . . . "A Quasi-Projection Approximation Method Applied to Galerkin Procedures for Parabolic and Hyperbolic Equations"@en . . . . . . . . . . . . . . . . . . . . "A Quasi-Projection Approximation Method Applied to Galerkin : Procedures for Parabolic and Hyperbolic Equations" . . "A quasi-projection approximation method applied to Galerkin procedures for parabolic and hyperbolic equations" . "A quasi-projection approximation method applied to Galerkin procedures for parabolic and hyperbolic equations"@en . . "A quasi-projection approximation method applied to galerkin procedures for parabolic and hyperbolic equations" . . . . . "Équations différentielles paraboliques Solutions numériques." . . "Numerical Mathematics." . . "Projection (Géométrie)" . .