# Mathematics Colloquia and Seminars

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### 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.