The Allen–Cahn equation with dynamic boundary conditions and mass constraints

Publisher: John Wiley & Sons Inc

E-ISSN: 1099-1476|38|17|3950-3967

ISSN: 0170-4214

Source: MATHEMATICAL METHODS IN THE APPLIED SCIENCES, Vol.38, Iss.17, 2015-11, pp. : 3950-3967

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

The Allen–Cahn equation, coupled with dynamic boundary conditions, has recently received a good deal of attention. The new issue of this paper is the setting of a rather general mass constraint, which may involve either the solution inside the domain or its trace on the boundary. The system of nonlinear partial differential equations can be formulated as a variational inequality. The presence of the constraint in the evolution process leads to additional terms in the equation and the boundary condition containing a suitable Lagrange multiplier. A well‐posedness result is proved for the related initial value problem. Copyright © 2014 John Wiley & Sons, Ltd.