This chapter considers the LU factorization of a general nonsymmetric nonsingular sparse matrix A. In practice, numerical pivoting for stability and/or ordering of A to limit fill-in in the factors is often needed and the computed factorization is then of a permuted matrix PAQ. Pivoting is discussed in Chapter 7 and ordering algorithms in Chapter 8.
CITATION STYLE
Scott, J., & Tuma, M. (2023). Sparse LU Factorizations. In Necas Center Series (Vol. 2023, pp. 89–111). Birkhauser. https://doi.org/10.1007/978-3-031-25820-6_6
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