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Numerical Solutions of Volterra Integral Equations of the Second Kind Using Barycentric Lagrange with Chebyshev Interpolation

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Last updated: 04 Jan 2025

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Abstract

The Barycentric Lagrange interpolation with non-uniformly spaced Chebyshev interpolation nodes has been modified and re-configured in a new formula to solve Volterra integral equations of the second kind. To avoid the application of the collocation methods necessary to transform the solution into an equivalent linear system, the unknown function is interpolated using the given modified Barycentric Lagrange polynomials and is substituted twice into the integral equation, while the given data function is expanded into Maclaurin polynomial of the same degree as the interpolant unknown function. Thus, the presented technique yields substantially higher accuracy and faster convergence of the solutions. The obtained results of the five illustrated examples show that the numerical solutions converge to the exact solutions, particularly for unknown analytic functions, and strongly converge to the exact ones for all values of  including the endpoints of the integration domain regardless of whether the kernel and data functions are algebraic or not. 

DOI

10.21608/mjeer.2019.76664

Keywords

Volterra integral equations, second kind, Chebyshev nodes, interpolation, Barycentric Lagrange, Numerical methods

Authors

First Name

E. S.

Last Name

Shoukralla

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Affiliation

Faculty of Electronic Engineering, Menoufia University Menouf, Egypt

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First Name

B. M.

Last Name

Ahmed

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Affiliation

Teaching Assistant of Eng. Math. Faculty of Engineering and Technology, FUE in Egypt Cairo, Egypt

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Volume

28

Article Issue

ICEEM2019-Special Issue

Related Issue

9704

Issue Date

2019-12-01

Receive Date

2020-03-10

Publish Date

2019-12-01

Page Start

275

Page End

279

Print ISSN

1687-1189

Online ISSN

2682-3535

Link

https://mjeer.journals.ekb.eg/article_76664.html

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https://mjeer.journals.ekb.eg/service?article_code=76664

Order

23

Type

Original Article

Type Code

1,088

Publication Type

Journal

Publication Title

Menoufia Journal of Electronic Engineering Research

Publication Link

https://mjeer.journals.ekb.eg/

MainTitle

Numerical Solutions of Volterra Integral Equations of the Second Kind Using Barycentric Lagrange with Chebyshev Interpolation

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Article

Created At

22 Jan 2023