An Iterative Algorithm for Approximating the Fixed Point of a Contractive Affine Operator
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Iterative numerical methodsSchauder basesFredholm integral equation
Berenguer, M.I.; Ruiz Galán, M. An Iterative Algorithm for Approximating the Fixed Point of a Contractive Affine Operator. Mathematics 2022, 10, 1012. [https://doi.org/10.3390/math10071012]
SponsorshipJunta de Andalucia FQM359; "Maria de Maeztu" Excellence Unit IMAG - MCIN/AEI CEX2020-001105-M
First of all, in this paper we obtain a perturbed version of the geometric series theorem, which allows us to present an iterative numerical method to approximate the fixed point of a contractive affine operator. This result requires some approximations that we obtain using the projections associated with certain Schauder bases. Next, an algorithm is designed to approximate the solution of Fredholm’s linear integral equation, and we illustrate the behavior of the method with some numerical examples.