## Abstract In this article, we develop functional a posteriori error estimates for discontinuous Galerkin (DG) approximations of elliptic boundaryโvalue problems. These estimates are based on a certain projection of DG approximations to the respective energy space and functional a posteriori estim
A posteriori error estimates for finite volume approximations of elliptic equations on general surfaces
โ Scribed by Lili Ju; Li Tian; Desheng Wang
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 678 KB
- Volume
- 198
- Category
- Article
- ISSN
- 0045-7825
No coin nor oath required. For personal study only.
โฆ Synopsis
In this paper, we present a residual-based a posteriori error estimate for the finite volume discretization of steady convection-diffusion-reaction equations defined on surfaces in R 3 , which are often implicitly represented as level sets of smooth functions. Reliability and efficiency of the proposed a posteriori error estimator are rigorously proved. Numerical experiments are also conducted to verify the theoretical results and demonstrate the robustness of the error estimator.
๐ SIMILAR VOLUMES
In this paper, the gradient recovery type a posteriori error estimators for ยฎnite element approximations are proposed for irregular meshes. Both the global and the local a posteriori error estimates are derived. Moreover, it is shown that the a posteriori error estimates is asymptotically exact on w
## Abstract In this article, we study the a posteriori __H__^1^ and __L__^2^ error estimates for CrouzeixโRaviart nonconforming finite volume element discretization of general secondโorder elliptic problems in __โ__^2^. The error estimators yield global upper and local lower bounds. Finally, numeri
In this paper, an a posteriori error estimation technique for hyperbolic conservation laws is proposed. The error distributions are obtained by solving a system of equations for the errors which are derived from the linearized hyperbolic conservation laws. The error source term is estimated using th