An Algorithm for the Solution of Nonlinear Volterra–Fredholm Integral Equations with a Singular Kernel

The nonlinear Volterra–Fredholm integral Equation (NVFIE) with a singular kernel is discussed such that the kernel of position can take the Hilbert kernel form, Carleman function, logarithmic form, or Cauchy kernel. Using the quadrature method, the NVFIE with a singular kernel leads to a system of n...

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Main Authors: Sahar M. Abusalim, Mohamed A. Abdou, Mohamed E. Nasr, Mohamed A. Abdel-Aty
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/7/10/730
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author Sahar M. Abusalim
Mohamed A. Abdou
Mohamed E. Nasr
Mohamed A. Abdel-Aty
author_facet Sahar M. Abusalim
Mohamed A. Abdou
Mohamed E. Nasr
Mohamed A. Abdel-Aty
author_sort Sahar M. Abusalim
collection DOAJ
description The nonlinear Volterra–Fredholm integral Equation (NVFIE) with a singular kernel is discussed such that the kernel of position can take the Hilbert kernel form, Carleman function, logarithmic form, or Cauchy kernel. Using the quadrature method, the NVFIE with a singular kernel leads to a system of nonlinear integral equations. The existence and unique numerical solution of this system is discussed, as is the truncation error of the numerical solution. The solution of the nonlinear integral equation system is obtained using the spectral relations and techniques of the Chebyshev polynomial method. Finally, we will discuss examples of when the kernel takes various forms to demonstrate this technique’s high accuracy and simplicity. Some numerical results and estimating errors are calculated and plotted using the program Wolfram Mathematica 10.
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spelling doaj.art-74838c8840124c478078e22f6b45ec242023-11-19T16:34:28ZengMDPI AGFractal and Fractional2504-31102023-10-0171073010.3390/fractalfract7100730An Algorithm for the Solution of Nonlinear Volterra–Fredholm Integral Equations with a Singular KernelSahar M. Abusalim0Mohamed A. Abdou1Mohamed E. Nasr2Mohamed A. Abdel-Aty3Department of Mathematics, College of Science and Arts, Jouf University, Al-Qurayyat 77455, Saudi ArabiaDepartment of Mathematics, Faculty of Education, Alexandria University, Alexandria 21511, EgyptDepartment of Mathematics, College of Science and Arts, Jouf University, Al-Qurayyat 77455, Saudi ArabiaDepartment of Mathematics, Faculty of Science, Benha University, Benha 13518, EgyptThe nonlinear Volterra–Fredholm integral Equation (NVFIE) with a singular kernel is discussed such that the kernel of position can take the Hilbert kernel form, Carleman function, logarithmic form, or Cauchy kernel. Using the quadrature method, the NVFIE with a singular kernel leads to a system of nonlinear integral equations. The existence and unique numerical solution of this system is discussed, as is the truncation error of the numerical solution. The solution of the nonlinear integral equation system is obtained using the spectral relations and techniques of the Chebyshev polynomial method. Finally, we will discuss examples of when the kernel takes various forms to demonstrate this technique’s high accuracy and simplicity. Some numerical results and estimating errors are calculated and plotted using the program Wolfram Mathematica 10.https://www.mdpi.com/2504-3110/7/10/730singular nonlinear Volterra–Fredholm integral equationalgebraic systemBanach fixed point theoremsingular kernelChebyshev polynomials
spellingShingle Sahar M. Abusalim
Mohamed A. Abdou
Mohamed E. Nasr
Mohamed A. Abdel-Aty
An Algorithm for the Solution of Nonlinear Volterra–Fredholm Integral Equations with a Singular Kernel
Fractal and Fractional
singular nonlinear Volterra–Fredholm integral equation
algebraic system
Banach fixed point theorem
singular kernel
Chebyshev polynomials
title An Algorithm for the Solution of Nonlinear Volterra–Fredholm Integral Equations with a Singular Kernel
title_full An Algorithm for the Solution of Nonlinear Volterra–Fredholm Integral Equations with a Singular Kernel
title_fullStr An Algorithm for the Solution of Nonlinear Volterra–Fredholm Integral Equations with a Singular Kernel
title_full_unstemmed An Algorithm for the Solution of Nonlinear Volterra–Fredholm Integral Equations with a Singular Kernel
title_short An Algorithm for the Solution of Nonlinear Volterra–Fredholm Integral Equations with a Singular Kernel
title_sort algorithm for the solution of nonlinear volterra fredholm integral equations with a singular kernel
topic singular nonlinear Volterra–Fredholm integral equation
algebraic system
Banach fixed point theorem
singular kernel
Chebyshev polynomials
url https://www.mdpi.com/2504-3110/7/10/730
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