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Listar por palabra clave "Sherman-Morrison formula"

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Listar por palabra clave "Sherman-Morrison formula"

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    An inverse LU preconditioner based on the Sherman-Morrison formula 
    Bru García, Rafael; Cerdán Soriano, Juana Mercedes; Marín Mateos-Aparicio, José; Mas Marí, José (Universitatea "Ovidius" Constanta, 2024-04-01)
    [EN] An approximate inverse LU preconditioner is constructed based on the Sherman-Morrison formula. Applying recursively that inversion formula a multiplicative decomposition of the inverse of a matrix is obtained. This ...
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    Pivoting in ISM factorizations 
    Mas Marí, José; Marín Mateos-Aparicio, José (Universitat Politècnica de València, 2022-07-15)
    [EN] In this work we study pivoting strategies for the preconditioner presented Balanced Incomplete Preconditioner (SIAM J Sci Comput 30(5):2302¿2318, 2008) which computes the LU factorization of a matrix A. We present a ...
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    Preconditioners based on the ISM factorization 
    Bru García, Rafael; Cerdán Soriano, Juana Mercedes; Marín Mateos-Aparicio, José; Mas Marí, José; Tuma, Miroslav (Tipografia Universitatii Ovidius, 2015)
    In this paper we survey our work on preconditioners based on the Inverse Sherman-Morrison factorization. The most important theoretical results are also summarized and some numerical conclusions are provided.