Superconvergent Nyström and degenerate kernel methods for Hammerstein integral equations

• Autores: C. Allouch, D. Sbibih, M. Tahrichi
• Localización: Journal of computational and applied mathematics, ISSN 0377-0427, Vol. 258, Nº 1, 2014, págs. 30-41
• Idioma: inglés
• DOI: 10.1016/j.cam.2013.08.025
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• Resumen

  • In a recent paper, we introduced new methods called superconvergent Nystrom and degenerate kernel methods for approximating the solution of Fredholm integral equations of the second kind with a smooth kernel. In this paper, these methods are applied to numerically solve the Hammerstein equations. By using an interpolatory projection at Gauss points onto the space of (discontinuous) piecewise polynomials of degree . r .

    1, we prove that, as for Fredholm integral equations, the proposed methods exhibit convergence orders 3r and 4r for the iterated version. Several numerical examples are given to demonstrate the effectiveness of the current methods.