Abstract:In recent years, several algorithms have appeared for modifying the factors of a matrix following a rank-one change. These methods have always been given in the context of specific applications and this has probably inhibited their use over a wider field. In this report, several methods are described for modifying Cholesky factors. Some of these have been published previously while others appear for the first time. In addition, a new algorithm is presented for modifying the complete orthogonal factorization of a general matrix, from which the conventional QR factors are obtained as a special case. A uniform notation has been used and emphasis has been placed on illustrating the similarity between different methods.
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- © Copyright 1974 American Mathematical Society
- Journal: Math. Comp. 28 (1974), 505-535
- MSC: Primary 65F05
- DOI: https://doi.org/10.1090/S0025-5718-1974-0343558-6
- MathSciNet review: 0343558