http://www.cnr.it/ontology/cnr/individuo/prodotto/ID30987
Null space algorithm and spanning tree in solving Darcy's equation (Articolo in rivista)
- Type
- Label
- Null space algorithm and spanning tree in solving Darcy's equation (Articolo in rivista) (literal)
- Anno
- 2003-01-01T00:00:00+01:00 (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Arioli M., Manzini G. (literal)
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- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Titolo
- Null space algorithm and spanning tree in solving Darcy's equation (literal)
- Abstract
- A Null Space algorithm is considered to solve the augmented system produced by the mixed finite element approximation of Darcy's Law. The method is based on the combination of a LU factorization technique for sparse matrices with an iterative Krylov solver. The computational efficiency of the method relies on the use of spanning trees to compute the LU factorization without fill-in and on a suitable stopping criterion for the iterative solver. We experimentally investigate its performance on a realistic set of selected application problems. (literal)
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