Interior Layers for Second-Order Singular Equations

Our aim in this article is to study singularly perturbed problems which display boundary layers in the interior of the domain. These interior boundary layers which supplement the usual boundary layers at the boundary, are generated by discontinuities in the data. Second-order linear elliptic one-dimensional and multi-dimensional problems are considered in this article.

Keywords:

• Asymptotic Expansions
• Boundary Layers
• Pde With Discontinuous Coefficients Or Data
• Singular Perturbations
• Singularities