Complete classification of shape functions of self-similar solutions

In this paper we study some asymptotic profiles of shape functions of self-similar solutions to the initial-boundary value problem with Neumann boundary condition for the generalized KPZ equation: ut = uxx −|ux |q, where q is positive number. The shapes of solutions of the corresponding nonlinear ordinary differential equation are of very different nature. The properties depend on the critical value q = 1, 32 , 2 and initial data as usual. © 2006 Elsevier Inc. All rights reserved