Implicit iteration methods in Hilbert scales under general smoothness conditions

Details Implicit iteration methods in Hilbert scales under general smoothness conditions Implicit iteration methods in Hilbert scales under general smoothness conditions

2010-09-20

arxiv.org/abs/1009.3907v1

Mathematics

Numerical Analysis

Scientific paper

For solving linear ill-posed problems regularization methods are required when the right hand side is with some noise. In the present paper regularized solutions are obtained by implicit iteration methods in Hilbert scales. % By exploiting operator monotonicity of certain functions and interpolation techniques in variable Hilbert scales, we study these methods under general smoothness conditions. Order optimal error bounds are given in case the regularization parameter is chosen either {\it a priori} or {\it a posteriori} by the discrepancy principle. For realizing the discrepancy principle, some fast algorithm is proposed which is based on Newton's method applied to some properly transformed equations.

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