A convection-diffusion problem with a large shift in space is considered. Numerical analysis of high order finite element methods on layer-adapted Duran type meshes, as well as on coarser Duran type meshes in places where weak layers appear, is provided. The theoretical results are confirmed by numerical experiments.

翻译：考虑了一个具有大位移的对流扩散问题。我们提供了关于 Duran 网格高阶有限元方法的数值分析，以及在弱层出现的地方使用更粗的 Duran 类型网格的分析。通过数值实验，证实了理论结果的正确性。