G. Namah et Jm. Roquejoffre, LONG-TIME BEHAVIOR OF THE SOLUTIONS OF A CLASS OF NONLINEAR PARABOLICAND HAMILTON-JACOBI EQUATIONS, Comptes rendus de l'Academie des sciences. Serie 1, Mathematique, 324(12), 1997, pp. 1367-1370
We study long-time behaviour of the solutions of a class of nonlinear
parabolic equations, as well as their Hamilton-Jacobi version. The sol
utions are shown to converge to either periodic fronts, or to steady s
olutions, modulo a linear growth in time.