On existence and numerical solution of higher order nonlinear integro-differential equations involving variable coefficients
Results in Applied Mathematics(2023)
Abstract
We investigate the approximate solution to a class of fourth-order Volterra-Fredholm integro differential equations (VFIDEs). Additionally, we are able to get some adequate results for the existence of a solution with the use of nonlinear analysis techniques. The basis for the required numerical computation is provided by the Haar wavelet collocations (HWCs) technique, which converts the problems into a system of algebraic equations. Then, in order to obtain the required numerical solution, we solve the result-ing system of algebraic equations using Gauss elimination and Broyden's techniques. This method can be used to show convergence, and the predicted rate of convergence is two. Along with relevant examples, we have included a graphical presentation to demonstrate our suggested approach.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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Key words
IDEs,HWCs,Results for existence,Numerical solution
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