A collocation method for the numerical solution of a two dimensional integral equation using a quadratic spline quasi‐interpolant

A collocation method for the numerical solution of a two dimensional integral equation using a quadratic spline quasi‐interpolant

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Article ID: iaor20132005
Volume: 62
Issue: 3
Start Page Number: 445
End Page Number: 468
Publication Date: Mar 2013
Journal: Numerical Algorithms
Authors: , ,
Keywords: interpolation, splines
Abstract:

In this paper, we propose an interesting method for approximating the solution of a two dimensional second kind equation with a smooth kernel using a bivariate quadratic spline quasi‐interpolant (abbr. QI) defined on a uniform criss‐cross triangulation of a bounded rectangle. We study the approximation errors of this method together with its Sloan’s iterated version and we illustrate the theoretical results by some numerical examples.

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