A simplified proof of the Kantorovich theorem for solving equations using telescopic series

We extend the applicability of the Kantorovich theorem (KT) for solving nonlinear equations using Newton-Kantorovich method in a Banach space setting. Under the same information but using elementary scalar telescopic majorizing series, we provide a simpler proof for the (KT) [2], [7]. Our results p...

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Main Authors: Ioannis K. Argyros, Hongmin Ren
Format: Article
Language:English
Published: Publishing House of the Romanian Academy 2015-12-01
Series:Journal of Numerical Analysis and Approximation Theory
Subjects:
Online Access:https://ictp.acad.ro/jnaat/journal/article/view/1084
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author Ioannis K. Argyros
Hongmin Ren
author_facet Ioannis K. Argyros
Hongmin Ren
author_sort Ioannis K. Argyros
collection DOAJ
description We extend the applicability of the Kantorovich theorem (KT) for solving nonlinear equations using Newton-Kantorovich method in a Banach space setting. Under the same information but using elementary scalar telescopic majorizing series, we provide a simpler proof for the (KT) [2], [7]. Our results provide at least as precise information on the location of the solution. Numerical examples are also provided in this study.
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spelling doaj.art-ecd655ed8b2540bb9012a7bb75c214e12022-12-22T01:24:11ZengPublishing House of the Romanian AcademyJournal of Numerical Analysis and Approximation Theory2457-67942501-059X2015-12-01442A simplified proof of the Kantorovich theorem for solving equations using telescopic seriesIoannis K. Argyros0Hongmin Ren1Cameron UniversityHangzhou Polytechnic We extend the applicability of the Kantorovich theorem (KT) for solving nonlinear equations using Newton-Kantorovich method in a Banach space setting. Under the same information but using elementary scalar telescopic majorizing series, we provide a simpler proof for the (KT) [2], [7]. Our results provide at least as precise information on the location of the solution. Numerical examples are also provided in this study. https://ictp.acad.ro/jnaat/journal/article/view/1084Newton-Kantorovich methodBanach spacemajorizing seriestelescopic seriesKantorovich theorem
spellingShingle Ioannis K. Argyros
Hongmin Ren
A simplified proof of the Kantorovich theorem for solving equations using telescopic series
Journal of Numerical Analysis and Approximation Theory
Newton-Kantorovich method
Banach space
majorizing series
telescopic series
Kantorovich theorem
title A simplified proof of the Kantorovich theorem for solving equations using telescopic series
title_full A simplified proof of the Kantorovich theorem for solving equations using telescopic series
title_fullStr A simplified proof of the Kantorovich theorem for solving equations using telescopic series
title_full_unstemmed A simplified proof of the Kantorovich theorem for solving equations using telescopic series
title_short A simplified proof of the Kantorovich theorem for solving equations using telescopic series
title_sort simplified proof of the kantorovich theorem for solving equations using telescopic series
topic Newton-Kantorovich method
Banach space
majorizing series
telescopic series
Kantorovich theorem
url https://ictp.acad.ro/jnaat/journal/article/view/1084
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AT hongminren asimplifiedproofofthekantorovichtheoremforsolvingequationsusingtelescopicseries
AT ioanniskargyros simplifiedproofofthekantorovichtheoremforsolvingequationsusingtelescopicseries
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