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Persistent URL http://purl.org/net/epubs/work/29693
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Record Id 29693
Title Subspace-by-Subspace Preconditioners for Structured Linear Systems
Abstract We consider the iterative solution of symmetric positive-definite linear systems whose coefficient matrix may be expressed as the outer-product of low-rank terms. We derive suitable preconditioners for such systems, and demonstrate their effectiveness on a number of test examples. We also consider combining these methods with existing techniques to cope with the commonly occurring case where the coefficient matrix is the linear sum of elements, some of which are of very low rank.
Organisation CCLRC
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Language English (EN)
Type Details URI(s) Local file(s) Year
Report RAL Technical Reports RAL-TR-1998-005. 1998. raltr-1998005.pdf 1998
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