The paper demonstrates numerical convergence for stationary and parabolic problems, indicating advances in solving challenging mathematical issues.
The paper discusses stationary and parabolic turning point problems with a variable diffusion coefficient and a small parameter. It constructs layer-eliminating coordinate transformations and corresponding layer-resolving grids, and analyzes convergence of numerical solutions through the upwind and second-order schemes on the layer-resolving grids.
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Liseikin et al. (2026) studied this question.
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