Abstract and Applied Analysis
Volume 2 (1997), Issue 1-2, Pages 47-66
Global attractors for two-phase stefan problems in
Department of Mathematics, Faculty of Education, Gifu University, Gifu 501-11, Japan
Received 20 May 1997
Copyright © 1997 T. Aiki. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In this paper we consider one-dimensional two-phase Stefan problems for a class of parabolic equations with nonlinear heat source terms
and with nonlinear flux conditions on the fixed boundary. Here, both time-dependent and time-independent source terms and boundary conditions are treated. We investigate the large time behavior of solutions to our problems by using the theory for dynamical systems. First, we show the existence of a global attractor of autonomous Stefan problem. The main purpose in the present paper is to prove that the set attracts all solutions of non-autonomous Stefan problems as time tends to infinity under the assumption that time-dependent data converge to time-independent ones as time goes to infinity.