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Approximating inverse FEM matrices on non-uniform meshes with [Formula: see text] -matrices
We consider the approximation of the inverse of the finite element stiffness matrix in the data sparse [Formula: see text] -matrix format. For a large class of shape regular but possibly non-uniform meshes including algebraically graded meshes, we prove that the inverse of the stiffness matrix can b...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Springer International Publishing
2021
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8591708/ https://www.ncbi.nlm.nih.gov/pubmed/34803176 http://dx.doi.org/10.1007/s10092-021-00413-w |