1 Department of Informatics and Mathematical Modeling, Technical University of Denmark2 Scientific Computing, Department of Informatics and Mathematical Modeling, Technical University of Denmark3 YangZhou University4 Department of Applied Mathematics and Computer Science, Technical University of Denmark
In this paper we consider a double fronts free boundary problem for a parabolic equation with a non-local source and absorption. The long time behaviors of the solutions are given and the properties of the free boundaries are discussed. Our results show that if the initial value is sufficiently large, then the solution blows up in finite time, while the global fast solution exists for sufficiently small initial data, and the intermediate case with suitably large initial data gives the existence of the global slow solution.
Acta Applicandae Mathematicae, 2013, Vol 124, Issue 1, p. 171-186
Free boundary; Blowup; Global solution; Non-local source; Absorption