P. Laurencot et F. Simondon, LONG-TIME BEHAVIOR FOR POROUS-MEDIUM EQUATIONS WITH CONVECTION, Proceedings of the Royal Society of Edinburgh. Section A. Mathematics, 128, 1998, pp. 315-336
Long-time behaviour of solutions to porous medium equations with conve
ction is investigated when the initial datum is a non-negative and int
egrable function on the real line. The long-time profile of the soluti
ons is determined, and depends on whether the convective or the diffus
ive effect dominates for large times. Sharp temporal decay estimates a
re also provided.