Mild Differentiability Conditions for Newton's Method in Banach Spaces

José Antonio Ezquerro Fernandez, Miguel Ángel Hernández Verón

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English

Springer Nature Switzerland AG
04 July 2020

Functional analysis & transforms; Differential calculus & equations; Integral calculus & equations; Numerical analysis

Series: Frontiers in Mathematics

In this book the authors use a technique based on recurrence relations to study the convergence of the Newton method under mild differentiability conditions on the first derivative of the operator involved. The authors’ technique relies on the construction of a scalar sequence, not majorizing, that satisfies a system of recurrence relations, and guarantees the convergence of the method. The application is user-friendly and has certain advantages over Kantorovich’s majorant principle. First, it allows generalizations to be made of the results obtained under conditions of Newton-Kantorovich type and, second, it improves the results obtained through majorizing sequences. In addition, the authors extend the application of Newton’s method in Banach spaces from the modification of the domain of starting points. As a result, the scope of Kantorovich’s theory for Newton’s method is substantially broadened. Moreover, this technique can be applied to any iterative method.

This book is chiefly intended for researchers and (postgraduate) students working on nonlinear equations, as well as scientists in general with an interest in numerical analysis.

By: José Antonio Ezquerro Fernandez, Miguel Ángel Hernández Verón
Imprint: Springer Nature Switzerland AG
Country of Publication: Switzerland
Edition: 1st ed. 2020
Dimensions: Height: 240mm, Width: 168mm,
Weight: 454g
ISBN: 9783030487010
ISBN 10: 3030487016
Series: Frontiers in Mathematics
Pages: 178
Publication Date: 04 July 2020
Audience: Professional and scholarly , Undergraduate
Format: Paperback
Publisher's Status: Active

Preface.- The Newton-Kantorovich theorem.- Operators with Lipschitz continuous first derivative.- Operators with Hölder continuous first derivative.- Operators with Hölder-type continuous first derivative.- Operators with w-Lipschitz continuous first derivative.- Improving the domain of starting points based on center conditions for the first derivative.- Operators with center w-Lipschitz continuous first derivative.- Using center w-Lipschitz conditions for the first derivative at auxiliary points.