Open AccessTreatment of Singularly Perturbed Differential Equations with Delay and Shift Using Haar Wavelet Collocation Method
Author(s) -
Akmal Raza,
Arshad Khan
Publication year - 2021
Publication title -
tamkang journal of mathematics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.324
H-Index - 18
eISSN - 0049-2930
pISSN - 2073-9826
DOI - 10.5556/j.tkjm.53.2022.3250
Subject(s) - haar wavelet , mathematics , collocation (remote sensing) , haar , wavelet , collocation method , orthogonal collocation , mathematical analysis , wavelet transform , differential equation , ordinary differential equation , discrete wavelet transform , computer science , artificial intelligence , machine learning
An efficient Haar wavelet collocation method is proposed for the numerical solution of singularly perturbed differential equations with delay and shift. Taylor series (upto the first order) is used to convert the problem with delay and shift into a new problem without the delay and shift and then solved by Haar wavelet collocation method, which reduces the time and complexity of the system. Further, we apply the Haar wavelet collocation method directly to solve the problems. Also, we demonstrated several test examples to show the accuracy and efficiency of the Haar wavelet collocation method and compared our results with the finite difference and fitted operator finite difference method [11], [28].