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)
Alternative label
  • Arioli M., Manzini G. (2003)
    Null space algorithm and spanning tree in solving Darcy's equation
    in BIT (Nord. Tidskr. Inf-Behandl.)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Arioli M., Manzini G. (literal)
Pagina inizio
  • 839 (literal)
Pagina fine
  • 840 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 43 (literal)
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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