ANALYSIS OF BOUNDARY LAYER SINGULARITYIN A NONLINEAR DIFFUSION PROBLEM

摘要

In this papcr, the author analyzes the singularity of a boundary layer in anonlinear diffusion problem. Results show when the limiting solution satisfies the boundarycondition, there is no boundary singularity. Otherwise, the boundary layer ecists, and itsthickness is proportional to ,ε here ε is a small positive real parameter.