On the adaptive selection of the parameter in regularization of ill-posed problems

  • We study a possiblity to use the structure of the regularization error for a posteriori choice of the regularization parameter. As a result, a rather general form of a selection criterion is proposed, and its relation to the heuristical quasi-optimality principle of Tikhonov and Glasko (1964), and to an adaptation scheme proposed in a statistical context by Lepskii (1990), is discussed. The advantages of the proposed criterion are illustrated by using such examples as self-regularization of the trapezoidal rule for noisy Abel-type integral equations, Lavrentiev regularization for non-linear ill-posed problems and an inverse problem of the two-dimensional profile reconstruction.

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Author:Sergei Pereverzev, Eberhard Schock
URN (permanent link):urn:nbn:de:hbz:386-kluedo-12668
Serie (Series number):Schriften zur Funktionalanalysis und Geomathematik (1)
Document Type:Preprint
Language of publication:English
Year of Completion:2003
Year of Publication:2003
Publishing Institute:Technische Universität Kaiserslautern
Tag:Abel integral equations; Inverse problems in Banach spaces; Lavrentiev regularization for equations with monotone operators; parameter choice
Faculties / Organisational entities:Fachbereich Mathematik
DDC-Cassification:510 Mathematik

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