Please use this identifier to cite or link to this item: https://doi.org/10.1002/nla.702
Title: Condition numbers and perturbation analysis for the Tikhonov regularization of discrete ill-posed problems
Authors: Chu, D. 
Lin, L.
Tan, R.C.E. 
Wei, Y.
Keywords: Condition number
Linear least squares
Perturbation
Tikhonov regularization
Issue Date: Jan-2011
Citation: Chu, D., Lin, L., Tan, R.C.E., Wei, Y. (2011-01). Condition numbers and perturbation analysis for the Tikhonov regularization of discrete ill-posed problems. Numerical Linear Algebra with Applications 18 (1) : 87-103. ScholarBank@NUS Repository. https://doi.org/10.1002/nla.702
Abstract: One of the most successful methods for solving the least-squares problem minx Ax-b 2 with a highly ill-conditioned or rank deficient coefficient matrix A is the method of Tikhonov regularization. In this paper, we derive the normwise, mixed and componentwise condition numbers and componentwise perturbation bounds for the Tikhonov regularization. Our results are sharper than the known results. Some numerical examples are given to illustrate our results. © 2010 John Wiley & Sons, Ltd.
Source Title: Numerical Linear Algebra with Applications
URI: http://scholarbank.nus.edu.sg/handle/10635/103034
ISSN: 10705325
DOI: 10.1002/nla.702
Appears in Collections:Staff Publications

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