S F Gilyazov

(Author)

Regularization of Ill-Posed Problems by Iteration Methods (2000)Hardcover - 2000, 31 December 1999

Regularization of Ill-Posed Problems by Iteration Methods (2000)
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Part of Series
Mathematics and Its Applications
Part of Series
Mathematics & Its Applications (Numbered Hardcover)
Print Length
342 pages
Language
English
Publisher
Springer
Date Published
31 Dec 1999
ISBN-10
0792361318
ISBN-13
9780792361312

Description

Iteration regularization, i.e., utilization of iteration methods of any form for the stable approximate solution of ill-posed problems, is one of the most important but still insufficiently developed topics of the new theory of ill-posed problems. In this monograph, a general approach to the justification of iteration regulari- zation algorithms is developed, which allows us to consider linear and nonlinear methods from unified positions. Regularization algorithms are the 'classical' iterative methods (steepest descent methods, conjugate direction methods, gradient projection methods, etc.) complemented by the stopping rule depending on level of errors in input data. They are investigated for solving linear and nonlinear operator equations in Hilbert spaces. Great attention is given to the choice of iteration index as the regularization parameter and to estimates of errors of approximate solutions. Stabilizing properties such as smoothness and shape constraints imposed on the solution are used. On the basis of these investigations, we propose and establish efficient regularization algorithms for stable numerical solution of a wide class of ill-posed problems. In particular, descriptive regularization algorithms, utilizing a priori information about the qualitative behavior of the sought solution and ensuring a substantial saving in computational costs, are considered for model and applied problems in nonlinear thermophysics. The results of calculations for important applications in various technical fields (a continuous casting, the treatment of materials and perfection of heat-protective systems using laser and composite technologies) are given.

Product Details

Authors:
S F GilyazovN L Gol'dman
Book Edition:
2000
Book Format:
Hardcover
Country of Origin:
US
Date Published:
31 December 1999
Dimensions:
23.39 x 15.6 x 2.06 cm
ISBN-10:
0792361318
ISBN-13:
9780792361312
Language:
English
Location:
Dordrecht
Pages:
342
Publisher:
Weight:
671.32 gm

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