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On the superconvergence of Galerkin approximations to second-order hyperbolic equations. (English) Zbl 0451.65077


MSC:

65N30 Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs
35L20 Initial-boundary value problems for second-order hyperbolic equations
35L15 Initial value problems for second-order hyperbolic equations
65N15 Error bounds for boundary value problems involving PDEs
65D07 Numerical computation using splines
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