Generalizing the local convergence analysis of a class of $k$-step iterative algorithms with Hölder continuous derivative in Banach spaces

2021 ◽  
Author(s):  
Ioannis K. Argyros ◽  
Debasis Sharma ◽  
Sanjaya Kumar Parhi
Keyword(s):  
Convergence Analysis ◽  
Banach Spaces ◽  
Local Convergence ◽  
Iterative Algorithms ◽  
Continuous Derivative ◽  
Hölder Continuous ◽  
Local Convergence Analysis

scholarly journals Extending the Applicability of a Two-Step Chord-Type Method for Non-Differentiable Operators

Mathematics ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 804
Author(s):  
Ioannis K. Argyros ◽  
Neha Gupta ◽  
J. P. Jaiswal
Keyword(s):  
Approximate Solution ◽  
Convergence Analysis ◽  
Banach Spaces ◽  
Recurrence Relation ◽  
Convergence Theorem ◽  
Local Convergence ◽  
Existence And Uniqueness ◽  
Numerical Illustration ◽  
Type Method ◽  
Local Convergence Analysis

The semi-local convergence analysis of a well defined and efficient two-step Chord-type method in Banach spaces is presented in this study. The recurrence relation technique is used under some weak assumptions. The pertinency of the assumed method is extended for nonlinear non-differentiable operators. The convergence theorem is also established to show the existence and uniqueness of the approximate solution. A numerical illustration is quoted to certify the theoretical part which shows that earlier studies fail if the function is non-differentiable.

scholarly journals Local convergence of a parameter based iteration with Hölder continuous derivative in Banach spaces

CALCOLO ◽  
2016 ◽  
Vol 54 (2) ◽  
pp. 527-539 ◽  
Author(s):  
Sukhjit Singh ◽  
D. K. Gupta ◽  
Rakesh P. Badoni ◽  
E. Martínez ◽  
José L. Hueso
Keyword(s):  
Banach Spaces ◽  
Local Convergence ◽  
Continuous Derivative ◽  
Hölder Continuous

scholarly journals Local Convergence and Dynamical Analysis of a Third and Fourth Order Class of Equation Solvers

2021 ◽  
Vol 5 (2) ◽  
pp. 27
Author(s):  
Debasis Sharma ◽  
Ioannis K. Argyros ◽  
Sanjaya Kumar Parhi ◽  
Shanta Kumari Sunanda
Keyword(s):  
Convergence Analysis ◽  
Banach Spaces ◽  
Fourth Order ◽  
Local Convergence ◽  
Taylor Expansion ◽  
Iterative Algorithms ◽  
Continuity Condition ◽  
Dynamical Analysis ◽  
Local Analysis ◽  
Uniqueness Of The Solution

In this article, we suggest the local analysis of a uni-parametric third and fourth order class of iterative algorithms for addressing nonlinear equations in Banach spaces. The proposed local convergence is established using an ω-continuity condition on the first Fréchet derivative. In this way, the utility of the discussed schemes is extended and the application of Taylor expansion in convergence analysis is removed. Furthermore, this study provides radii of convergence balls and the uniqueness of the solution along with the calculable error distances. The dynamical analysis of the discussed family is also presented. Finally, we provide numerical explanations that show the suggested analysis performs well in the situation where the earlier approach cannot be implemented.

Semi-local convergence of a Newton-like method for solving equations with a singular derivative

2018 ◽  
Vol 27 (1) ◽  
pp. 01-08
Author(s):  
IOANNIS K. ARGYROS ◽  
◽  
GEORGE SANTHOSH ◽  
Keyword(s):  
Banach Space ◽  
Convergence Analysis ◽  
Real Line ◽  
Local Convergence ◽  
Approximate Solutions ◽  
Convergence Domain ◽  
Solving Equations ◽  
Solutions Of Equations ◽  
Local Convergence Analysis ◽  
Special Case

We present a semi-local convergence analysis for a Newton-like method to approximate solutions of equations when the derivative is not necessarily non-singular in a Banach space setting. In the special case when the equation is defined on the real line the convergence domain is improved for this method when compared to earlier results. Numerical results where earlier results cannot apply but the new results can apply to solve nonlinear equations are also presented in this study.

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