Accuracy of preconditioned CG-type methods for least squares problems.
DOI10.1016/S0898-1221(03)80009-3zbMath1056.65035MaRDI QIDQ1416375
Publication date: 14 December 2003
Published in: Computers \& Mathematics with Applications (Search for Journal in Brave)
numerical examplespreconditioningincomplete orthogonal factorizationconjugate gradient-type methodFinite precision arithmeticincomplete Gram-Schmidt factorizationIncomplete modified Gram-Schmidt orthogonalizationLeast square problemsRounding error analysis
Numerical solutions to overdetermined systems, pseudoinverses (65F20) Numerical computation of matrix norms, conditioning, scaling (65F35) Orthogonalization in numerical linear algebra (65F25)
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