UC Davis Mathematics

Mathematics Colloquia and Seminars

Return to Colloquia & Seminar listing

Global stability and decay for the classical Stefan problem

PDE and Applied Math Seminar

Speaker: Steve Shkoller, UCD
Location: 1147 MSB
Start time: Tue, Mar 12 2013, 3:10PM

The classical one-phase Stefan problem describes the temperature distribution in a homogeneous medium undergoing a phase transition, such as ice melting to water. This is accomplished by solving the heat equation on a time-dependent domain whose boundary is transported by the normal derivative of the temperature along the evolving and a priori unknown free-boundary. Motivated by methods from the Euler equations, we establish a global-in-time stability result for small temperatures, using a novel hybrid methodology, which combines energy estimates, decay estimates, and Harnack-type inequalities.  This is joint work with M. Hadzic.