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Original research article

Linearization-Discretization process to solve systems of nonlinear Fredholm integral equations in an infinite-dimensional context

Author(s):

Ilyes Sedkaa, Samir Lemitab, Mohamed Zine Aissaouia

a Laboratoire de Mathématiques Appliquées et de Modélisation, Université 8 Mai 1945 Guelma, B.P. 401 Guelma 24000, Algérie.
b École Normale Supérieure de Ouargla, Cité Ennacer, Ouargla 30000, Algeria.

Advances in the Theory of Nonlinear Analysis and its Applications 6 (4), 547-564.
Received: September 21, 2021

  

  

  

Accepted: September 20, 2022

  

Published: October 9, 2022

Abstract

In this paper, we propose a different way for solving systems of nonlinear Fredholm integral equations of the second kind. We construct our new strategy in two steps: beginning with the linearization phase of the system of Fredholm integral equations by applying the Newton method, then passing to the discretization phase for some involved integral operator using the Nyström method. The convergence analysis of our new method is proved under some necessary conditions. Finally, a numerical application to a nonlinear Fredholm integro-differential equation is provided to confirm its advantage.

Keywords: System of nonlinear equations, Fredholm integral equations, Newton method, Nyström method, Integro-differential equation.

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APA Style

Sedka, I., Lemıta, S., & Aıssaouı, M. Z. (2022). Linearization-Discretization process to solve systems of nonlinear Fredholm integral equations in an infinite-dimensional context. Advances in the Theory of Nonlinear Analysis and its Application , 6 (4), 547-564.