An approach to numerical solutions of system of high-order linear differential-difference equations with variable coefficients and error estimation based on residual function

Year 2014, Volume: 2 Issue: 3, 220 - 233, 01.12.2014

Nebiye Korkmaz Mehmet Sezer

Abstract

In this study a method is presented which aims to make an approach by using Bernstein polynomials to solutions of systemsof high order linear differential-difference equations with variable coefficients given under mixed conditions. The method convertsa given system of differential-difference equations and the conditions belonging to this system to equations that can be expressedby matrices by using the collacation points and provides to find the unknown coefficients of approximate solutions sought in termsof Bernstein polynomials. Different examples are presented with the purpose to show the applicability and validity of the method.Absolute error values between exact and approximate solutions are computed. The estimated values of absolute errors are computed byusing the residual function and these estimated errors are compared with absolute errors. For all numerical computations of this studythe computer algebraic system Maple 15 is used

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