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Browsing by Subject "Balanced incomplete factorization"

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Browsing by Subject "Balanced incomplete factorization"

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    Low-rank updates of balanced incomplete factorization preconditioners 
    Cerdán Soriano, Juana Mercedes; Marín Mateos-Aparicio, José; Mas Marí, José (Springer-Verlag, 2017)
    [EN] Let Ax = b be a large and sparse system of linear equations where A is a nonsingular matrix. An approximate solution is frequently obtained by applying preconditioned terations. Consider the matrix B = A + PQT where ...