Decomposition plus ASI scheme on Shishkin mesh yields provably high accuracy for 1D singularly perturbed convection-diffusion problems, outperforming the Samarskii class.
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Improving the Accuracy of the Exponentially Fitted Scheme on Piecewise Uniform Meshes
Decomposition plus ASI scheme on Shishkin mesh yields provably high accuracy for 1D singularly perturbed convection-diffusion problems, outperforming the Samarskii class.