Abstract
We provide new semilocal convergence results for the Halley method in order to approximate a locally unique solution of a nonlinear equation in a Banach space setting. Our sufficient convergence conditions can be weaker than before, where as the error bounds on the distances involved are finer. Our first approach uses a Kantorovich-type analysis. The second approach uses our new idea of recurrent functions. A comparison between the two approaches is also given.
A numerical example further validating the theoretical results is also provided in this study.
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This work was supported by the Korea Research Foundation Grant funded by the Korean Government (KRF-2008-313-C00050).
An erratum to this article can be found at http://dx.doi.org/10.1007/s12190-011-0512-1
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Argyros, I.K., Cho, Y.J. & Hilout, S. On the semilocal convergence of the Halley method using recurrent functions. J. Appl. Math. Comput. 37, 221–246 (2011). https://doi.org/10.1007/s12190-010-0431-6
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DOI: https://doi.org/10.1007/s12190-010-0431-6