Journal
MATHEMATICS
Volume 9, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/math9111193
Keywords
Volterra integral equations; Fredholm integral equations; Modified Bernstein-Kantorovich operators; Moore-Penrose inverse; regularization
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This paper aims to numerically solve first kind linear Fredholm and Volterra integral equations using Modified Bernstein-Kantorovich operators. Through discretization, the equations are transformed into systems of algebraic linear equations. By introducing regularization features, stability of the solutions and accuracy of results are improved, especially when high order approximations are used with the operators.
The main aim of this paper is to numerically solve the first kind linear Fredholm and Volterra integral equations by using Modified Bernstein-Kantorovich operators. The unknown function in the first kind integral equation is approximated by using the Modified Bernstein-Kantorovich operators. Hence, by using discretization, the obtained linear equations are transformed into systems of algebraic linear equations. Due to the sensitivity of the solutions on the input data, significant difficulties may be encountered, leading to instabilities in the results during actualization. Consequently, to improve on the stability of the solutions which imply the accuracy of the desired results, regularization features are built into the proposed numerical approach. More stable approximations to the solutions of the Fredholm and Volterra integral equations are obtained especially when high order approximations are used by the Modified Bernstein-Kantorovich operators. Test problems are constructed to show the computational efficiency, applicability and the accuracy of the method. Furthermore, the method is also applied to second kind Volterra integral equations.
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