arXiv 0801.26552008-01-17math.APmath.DS

Global and exponential attractors for the Penrose-Fife system

Giulio Schimperna

英文摘要：

The Penrose-Fife system for phase transitions is addressed. Dirichlet boundary conditions for the temperature are assumed. Existence of global and exponential attractors is proved. Differently from preceding contributions, here the energy balance equation is both singular at 0 and degenerate at infinity. For this reason, the dissipativity of the associated dynamical process is not trivial and has to be proved rather carefully.

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2008-01-17math.AP