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Stability analysis of a parametric family of seventh-order iterative methods for solving nonlinear systems. (English) Zbl 1426.65072

Summary: In this paper, a parametric family of seventh-order of iterative method to solve systems of nonlinear equations is presented. Its local convergence is studied and quadratic polynomials are used to investigate its dynamical behavior. The study of the fixed and critical points of the rational function associated to this class allows us to obtain regions of the complex plane where the method is stable. By depicting parameter planes and dynamical planes we obtain complementary information of the analytical results. These results are used to solve some nonlinear problems.

MSC:

65H10 Numerical computation of solutions to systems of equations
37N30 Dynamical systems in numerical analysis
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