Local superconvergence of the derivative for tensor-product block FEM (Q2885154)
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scientific article; zbMATH DE number 6037215
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Local superconvergence of the derivative for tensor-product block FEM |
scientific article; zbMATH DE number 6037215 |
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Local superconvergence of the derivative for tensor-product block FEM (English)
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21 May 2012
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finite element theory of Green function
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local superconvergence
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tensor-product block finite elements
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symmetry technique
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weak estimate
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Poisson equation
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The paper is concerned with the study of local superconvergence of the derivative for tensor-product block finite elements of degree \({m}\) for the Poisson equation. Combining the symmetry technique with weak estimates for tensor-product block finite elements of degree \(m\geq 3\) and the finite element theory of the Green function on 3D, the authors propose local convergence of the derivatives role for superconvergence of tensor-product block finite elements.
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