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Zbl 0697.65051
Cherruault, Yves
Convergence of Adomian's method. (English)
[J] Kybernetes 18, No.2, 31-38 (1989). ISSN 0368-492X

G. Adomian and his collaborators have developed in some papers a new method for solving nonlinear functional equations. The solution of this method is given by a series in which each term is a polynomial adapted to the nonlinearity and determined in a recurrent manner. \par In this paper the author proposes a new definition of the technique, in order to use results, as fixed point theorems, for proving convergence of the series and the fact that the sum of the series is the solution of the given equations. \par It is easy to see that the technique proposed is powerful and the use of this one is not difficult. The series solution converges with remarkable rapidity under some reasonable assumptions. When these assumptions cannot be true then a modified technique is proposed and so these approaches are better than most of the numerical methods, suggested in the literature, for solving nonlinear problems.
[A.Donescu]

MSC 2000:: *65J15 Equations with nonlinear operators (numerical methods)
47J25 Methods for solving nonlinear operator equations (general)

Keywords: Adomian's method; Hilbert space; nonlinear functional equations; fixed point theorems; convergence; series solution

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Zentralblatt MATH Berlin [Germany]