## Abstract

Let \(X\) be a Banach space, \(Y\) a normed space \(P:X\rightarrow Y\) a nonlinear operator and the equation \(P\left( x\right) =0\) with solution \(x^{\ast}\). Consider \(\Sigma:=\left( x_{n}\right) _{n\geq0}\) a sequence from \(X\) and define the convergence order of \(\Sigma\) with respect to the solution of equation \(P\left( x\right) =0\). We give a general result with sufficient conditions such that the sequence \(\Sigma\) converge to the solution \(x^{\ast}\) with a given convergence order.

## Authors

Ion Păvăloiu

## Title

### Original title (in French)

*Sur l’approximation des solutions des equations à l’aide des suites à éléments dans un espace de Banach*

### English translation of the title

*On the approximation of the solutions of equations in Banach spaces by sequences*

## Keywords

approximation sequences; nonlinear equations in Banach spaces; convergence order.

## References

[1] Ghinea, M., *Sur la resolution des equations operationnelles dans les espaces de Banach*, Revue Francaise de traitement de l’information, 8, 3–22, (1965).

[2] Pavaloiu, I., *Sur les procedes iteratifs a un ordre eleve de convergence*, Mathematica, 12 (35), 2, 309–324, (1970).

[3] Traub, J. F., *Iterative Methods for the Solution of Equations*. Prentice-Hall Inc. Englewood Cliffs N. J. (1964).

Scanned paper.

## About this paper

##### Cite this paper as:

I. Păvăloiu, *Sur l’approximation des solutions des equations à l’aide des suites à éléments dans un espace de Banach*, Anal. Numér. Théor. Approx., **5** (1976) no. 1, pp. 63-67 (in French).

##### Journal

Mathematica – Revue d’Analyse Numérique et de Théorie de l’Approximation

L’Analyse Numérique et la Théorie de l’Approximation

##### Publisher Name

Editura Academia R. S. Romane

##### Paper on journal website

##### Print ISBN

1010-3376

##### Online ISBN

2457-8118