Face-apex projectors for the interpolation function of a general tetrahedral mid-edge finite element (Q1092592)
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scientific article; zbMATH DE number 4020296
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Face-apex projectors for the interpolation function of a general tetrahedral mid-edge finite element |
scientific article; zbMATH DE number 4020296 |
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Face-apex projectors for the interpolation function of a general tetrahedral mid-edge finite element (English)
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1988
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A procedure is developed to derive shape functions for tetrahedral mid- edge finite elements. Face-apex projectors are used in a maximal Boolean combination to produce an interpolant that finds applications in interpolation to boundary data over the tetrahedron. The maximal Boolean combination yields an interpolation function valid for a general tetrahedral mid-edge finite element when face-apex projectors are approximated by algebraic expressions involving maximal combinations of side-vertex projectors defined on tetrahedron faces.
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tetrahedral mid-edge finite elements
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face-apex projectors
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interpolant
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interpolation function
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