Chebyshev polynomials to Volterra-Fredholm integral equations of the first kind
DOI:
https://doi.org/10.35819/remat2024v10i1id6699Keywords:
Chebyshev polynomials, Volterra-Fredholm integral equations, ill-posed problems, perturbed equationsAbstract
Numerous methods have been studied and discussed for solving ill-posed Volterra integral equations and ill-posed Fredholm integral equations, but rarely for both simultaneously. In this study, we focus on numerically solving the ill-posed Volterra-Fredholm integral equation of the first kind by replacing it with its perturbed counterpart. We employ Chebyshev polynomials of the first kind to solve the perturbed equation. Our findings suggest that this technical approach is superior to the regularization method of Tikhonov. It is simpler, less cumbersome, and this simplicity is demonstrated through various examples.
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