On accelerating the convergence of the successive approximations method


  • Emil Cătinaş Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy, Romania


successive approximations, inexact Newton methods, quadratic convergence, acceleration of the convergence of successive approximations
Abstract views: 214


In a previous paper of us, we have shown that no q-superlinear convergence to a fixed point \(x^\ast\) of a nonlinear mapping \(G\) may be attained by the successive approximations when \(G^\prime(x^\ast)\) has no eigenvalue equal to 0. However, high convergence orders may be attained if one considers perturbed successive approximations.
We characterize the correction terms which must be added at each step in order to obtain convergence with q-order 2 of the resulted iterates.


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How to Cite

Cătinaş, E. (2001). On accelerating the convergence of the successive approximations method. Rev. Anal. Numér. Théor. Approx., 30(1), 3–8. Retrieved from https://ictp.acad.ro/jnaat/journal/article/view/2001-vol30-no1-art1