International Journal of Computer Mathematics
Neural, Parallel & Scientific Computations
Mathematical and Computer Modelling: An International Journal
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In this paper a singularly perturbed convection-diffusion equation with a discontinuous source term is examined. Boundary and weak interior layers appear in the solution. A numerical method is constructed for this problem which involves an appropriate piecewise-uniform mesh. The method is shown to be uniformly convergent with respect to the singular perturbation parameter.