A third order method for fixed points in Banach spaces |
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Authors: | S.K. Parhi |
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Affiliation: | Department of Mathematics, Indian Institute of Technology, Kharagpur 721302, India |
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Abstract: | This paper deals with a third order Stirling-like method used for finding fixed points of nonlinear operator equations in Banach spaces. The semilocal convergence of the method is established by using recurrence relations under the assumption that the first Fréchet derivative of the involved operator satisfies the Hölder continuity condition. A theorem is given to establish the error bounds and the existence and uniqueness regions for fixed points. The R-order of the method is also shown to be equal to at least (2p+1) for p∈(0,1]. The efficacy of our approach is shown by solving three nonlinear elementary scalar functions and two nonlinear integral equations by using both Stirling-like method and Newton-like method. It is observed that our convergence analysis is more effective and give better results. |
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Keywords: | Stirling-like method Hö lder continuity condition Fré chet derivative Nonlinear operator equations |
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