%0 Journal Article %T Analysis of the mushy region in conduction-convection problems with change of phase %A Mike O'Leary %J Electronic Journal of Differential Equations %D 1997 %I Texas State University %X where convective motion of the liquid affects the change of phase. The mushy region is the portion of the system to which temperature and enthalpy do not assign a phase, solid or liquid. In this paper we show that the enthalpy density remains constant in time almost everywhere in the mushy region. %K conduction %K convection %K free boundary %K Stefan problem %K mushy region. %U http://ejde.math.txstate.edu/Volumes/1997/04/abstr.html