Skip to Main Content
Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

Online ISSN 1552-4485; Print ISSN 0033-569X

   
 
 

 

Transient behavior of solutions to a class of nonlinear boundary value problems


Authors: Kurt Bryan and Michael S. Vogelius
Journal: Quart. Appl. Math. 69 (2011), 261-290
MSC (2000): Primary 35B05, 35B40
DOI: https://doi.org/10.1090/S0033-569X-2011-01204-5
Published electronically: March 3, 2011
MathSciNet review: 2814527
Full-text PDF Free Access

Abstract | References | Similar Articles | Additional Information

Abstract: In this paper we consider the asymptotic behavior in time of solutions to the heat equation with nonlinear Neumann boundary conditions of the form $\partial u/\partial \mathbf {n}=F(u)$, where $F$ is a function that grows superlinearly. Solutions frequently exist for only a finite time before “blowing up.” In particular, it is well known that solutions with initial data of one sign must blow up in finite time, but the situation for sign-changing initial data is less well understood. We examine in detail conditions under which solutions with sign-changing initial data (and certain symmetries) must blow up, and also conditions under which solutions actually decay to zero. We carry out this analysis in one space dimension for a rather general $F$, while in two space dimensions we confine our analysis to the unit disk and $F$ of a special form.


References [Enhancements On Off] (What's this?)

References

Similar Articles

Retrieve articles in Quarterly of Applied Mathematics with MSC (2000): 35B05, 35B40

Retrieve articles in all journals with MSC (2000): 35B05, 35B40


Additional Information

Kurt Bryan
Affiliation: Department of Mathematics, Rose-Hulman Institute of Technology, Terre Haute, Indiana 47803

Michael S. Vogelius
Affiliation: Department of Mathematics, Rutgers University, New Brunswick, New Jersey 08903

Keywords: Blowup, heat equation, nonlinear Neumann boundary condition
Received by editor(s): June 2, 2009
Published electronically: March 3, 2011
Article copyright: © Copyright 2011 Brown University