Influence of the Center Condition on the Two-Step Secant Method

Abhimanyu Kumar, D. K. Gupta and Shwetabh Srivastava

International Journal of Analysis, 2017, vol. 2017, 1-9

Abstract:

The aim of this paper is to present a new improved semilocal and local convergence analysis for two-step secant method to approximate a locally unique solution of a nonlinear equation in Banach spaces. This study is important because starting points play an important role in the convergence of an iterative method. We have used a combination of Lipschitz and center-Lipschitz conditions on the Fréchet derivative instead of only Lipschitz condition. A comparison is established on different types of center conditions and the influence of our approach is shown through the numerical examples. In comparison to some earlier study, it gives an improved domain of convergence along with the precise error bounds. Finally, some numerical examples including nonlinear elliptic differential equations and integral equations validate the efficacy of our approach.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:hin:ijanal:7364236

DOI: 10.1155/2017/7364236

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