On the choice of solution subspace for nonstationary iterated Tikhonov regularization (Q306369)
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scientific article; zbMATH DE number 6620992
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the choice of solution subspace for nonstationary iterated Tikhonov regularization |
scientific article; zbMATH DE number 6620992 |
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On the choice of solution subspace for nonstationary iterated Tikhonov regularization (English)
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31 August 2016
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The authors propose and analyze iterative methods for the normal equation of Tikhonov regularization of large sparse linear least squares problems. They consider a partial Golub-Kahan bidiagonalization of the problem matrix and determine approximate solutions in the associated Krylov subspace. Numerical experiments are also provided.
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ill-posed problem
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nonstationary iterated Tikhonov regularization
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Golub-Kahan bidiagonalization
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Arnoldi process
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Krylov subspace method
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generalized Krylov subspace method
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large sparse linear least squares problems
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numerical experiments
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