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Keywords:
numerical analysis; convection-diffusion problems; boundary layers; uniform convergence
numerical analysis; convection-diffusion problems; boundary layers; uniform convergence
Summary:
Singularly perturbed problems of convection-diffusion type cannot be solved numerically in a completely satisfactory manner by standard numerical methods. This indicates the need for robust or $\epsilon $-uniform methods. In this paper we derive new conditions for such schemes with special emphasize to parabolic layers.
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