Sara Costa Romero on Thu, 19 Apr 2012 12:01:55 +0200

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LU factorization for sparse matrices


I have some huge non-symmetric sparse systems I have to solve. Is there any LU factorization of sparse matrices or I have to consider them as dense? If there is not, can anyone give me an idea to minimize their fill factor preserving stability? It seems that if I preordering and stability do not match, one distrois the goods of the other.