A class of singularly perturbed, coupled, evolutionary boundary value problems. (English) Zbl 1041.35007
The authods study a singularly perturbed problem, with a boundary layer located in the interior of the domain. A zero-order asymptotic expansion of its solution is established, including a boundary layer function.
Reviewer: Jiaqi Mo (Wuhu)
MSC:
35B25 | Singular perturbations in context of PDEs |
35K65 | Degenerate parabolic equations |
35C20 | Asymptotic expansions of solutions to PDEs |