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Analysis of a family of discontinuous Galerkin methods for elliptic problems: the one dimensional case. (English) Zbl 1064.65082

This paper deals with the properties of discontinuous Galerkin methods for elliptic problems in one spatial dimension. The analysis is based on a splitting of the discrete space into a direct sun of continuous piecewise polynomials and a space representing the discontinuous part of the functions also satisfying a special orthogonality relation. The authors prove stability results and \(L^2\) error estimates. Finally, some remarks on the elementwise conservative nature of the discontinuous Galerkin method are presented.

MSC:

65L60 Finite element, Rayleigh-Ritz, Galerkin and collocation methods for ordinary differential equations
65L10 Numerical solution of boundary value problems involving ordinary differential equations
65L20 Stability and convergence of numerical methods for ordinary differential equations
65L70 Error bounds for numerical methods for ordinary differential equations
34B05 Linear boundary value problems for ordinary differential equations
Full Text: DOI

References:

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