An efficient numerical method for a singularly perturbed Fredholm integro-differential equation with integral boundary condition

Autor: Muhammet Enes Durmaz, Ilhame Amirali, Gabil M. Amiraliyev
Rok vydání: 2022
Předmět:
Zdroj: Journal of Applied Mathematics and Computing. 69:505-528
ISSN: 1865-2085
1598-5865
Popis: In this paper, a linear singularly perturbed Fredholm integro-differential initial value problem with integral condition is being considered. On a Shishkin-type mesh, a fitted finite difference approach is applied using a composite trapezoidal rule in both; in the integral part of equation and in the initial condition. The proposed technique acquires a uniform second-order convergence in respect to perturbation parameter. Further provided the numerical results to support the theoretical estimates.
Databáze: OpenAIRE