Abstract
We propose a new a posteriori error analysis of the variable-degree, hybridized version of the Raviart-Thomas method for second-order elliptic problems on conforming meshes made of simplexes. We establish both the reliability and efficiency of the estimator for the L2-norm of the error of the flux. We also find the explicit dependence of the estimator on the order of the local spaces k ≥ 0; the only constants that are not explicitly computed are those depending on the shape-regularity of the simplexes. In particular, the constant of the local efficiency inequality is proven to behave like (k + 2)3/2. However, we present numerical experiments suggesting that such a constant is actually independent of k.
Original language | English (US) |
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Pages (from-to) | 1063-1082 |
Number of pages | 20 |
Journal | Mathematics of Computation |
Volume | 83 |
Issue number | 287 |
DOIs | |
State | Published - May 1 2014 |
All Science Journal Classification (ASJC) codes
- Algebra and Number Theory
- Computational Mathematics
- Applied Mathematics