On a Differential Model for Growing Sandpiles with Non-Regular Sources

Author: Cannarsa Piermarco  

Publisher: Taylor & Francis Ltd

ISSN: 0360-5302

Source: Communications in Partial Differential Equations, Vol.34, Iss.7, 2009-07, pp. : 656-675

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

We consider a variational model that describes the growth of a sandpile on a bounded table under the action of a vertical source. The possible equilibria of such a model solves a boundary value problem for a system of nonlinear partial differential equations that we analyze when the source term is merely integrable. In addition, we study the asymptotic behavior of the dynamical problem showing that the solution converges asymptotically to an equilibrium that we characterize explicitly.