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Matematicheskie Zametki, 2019, Volume 105, Issue 3, Pages 406–420
DOI: https://doi.org/10.4213/mzm11902 (Mi mzm11902) 		 
This article is cited in 2 scientific papers (total in 2 papers)

Methods for solving ill-posed extremum problems with optimal and extra-optimal quality

A. S. Leonov

National Engineering Physics Institute "MEPhI", Moscow
Full-text PDF (561 kB) Citations (2)
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DOI: https://doi.org/10.4213/mzm11902
Abstract: The concept of the quality of approximate solutions of ill-posed extremum problems is introduced and a posteriori quality estimates for various solution methods are studied. Examples of quality functionals are given, which can be used to solve practical extremum problems. New concepts of optimal, optimal in order and extra-optimal quality of the method for solving the extremum problem are determined. The theory of stable methods for solving extremum problems (regularizing algorithms) with optimal order and extra optimal quality is developed, in which, in particular, the property of consistency of the evaluation function of quality is studied. Examples of regularizing algorithms with extra-optimal quality of solutions for extremal problems are given.
Keywords: ill-posed extremum problems, regularizing algorithms, quality of approximate solution, a posteriori estimate of quality, regularizing algorithm of extra-optimal quality.
Funding agency Grant number
Russian Foundation for Basic Research 17-01-00159-a
17-51-53002-ГФЕН-а
Ministry of Education and Science of the Russian Federation 02.a03.21.0005
This work was supported by the Russian Foundation for Basic Research under grants 17-01-00159-a and 17-51-53002-GFEN-a and by the Programm for Increasing the Competitive Position of National Research Nuclear University “MEPhI” (Moscow Engineering-Physical Institute) under grant no. 02.a03.21.0005, August 27, 2013.
Received: 19.12.2017
Revised: 03.03.2018
English version:
Mathematical Notes, 2019, Volume 105, Issue 3, Pages 385–397
DOI: https://doi.org/10.1134/S000143461903009X
Bibliographic databases:
Document Type: Article
UDC: 517.972
Language: Russian
Citation: A. S. Leonov, “Methods for solving ill-posed extremum problems with optimal and extra-optimal quality”, Mat. Zametki, 105:3 (2019), 406–420; Math. Notes, 105:3 (2019), 385–397
Citation in format AMSBIB
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    • This publication is cited in the following 2 articles:
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    		Математические заметки Mathematical Notes
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