Skip to Main Content
Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

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

   
 
 

 

Asymptotic behavior of a nonisothermal Ginzburg-Landau model


Authors: Maurizio Grasselli, Hao Wu and Songmu Zheng
Journal: Quart. Appl. Math. 66 (2008), 743-770
MSC (2000): Primary 35K55; Secondary 35B40, 35B41, 80A22, 82D55
DOI: https://doi.org/10.1090/S0033-569X-08-01115-9
Published electronically: October 3, 2008
MathSciNet review: 2465143
Full-text PDF Free Access

Abstract | References | Similar Articles | Additional Information

Abstract: We analyze a system of nonlinear parabolic equations which describes the evolution of an order parameter $f$ and the relative temperature $v$ in a superconducting material occupying a bounded domain $\Omega \subset {\mathbb R}^n$, $n\leq 3$. Here the dependent variable $f$ is subject to the homogeneous Neumann boundary condition, while $v$ is equal to a time-dependent Dirichlet datum $\tilde u$ on the boundary. Therefore, the corresponding dynamical system is nonautonomous. Our main goal is to analyze the asymptotic behavior of its solutions. We first show that the system has a bounded absorbing set and a global attractor which are uniform with respect to a sufficiently general class of $\tilde u$. Then, we give sufficient conditions on $\tilde u$ which ensure the convergence of a given trajectory to a single stationary state and we estimate the convergence rate. Finally, we demonstrate the existence of an exponential attractor of finite fractal dimension for quasi-periodic or stabilizing boundary data $\tilde u$.


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

References

Similar Articles

Retrieve articles in Quarterly of Applied Mathematics with MSC (2000): 35K55, 35B40, 35B41, 80A22, 82D55

Retrieve articles in all journals with MSC (2000): 35K55, 35B40, 35B41, 80A22, 82D55


Additional Information

Maurizio Grasselli
Affiliation: Dipartimento di Matematica, Politecnico di Milano, Milano 20133, Italy
Email: maurizio.grasselli@polimi.it

Hao Wu
Affiliation: School of Mathematical Sciences, Fudan University, Shanghai 200433, China
Email: haowufd@yahoo.com

Songmu Zheng
Affiliation: Institute of Mathematics, Fudan University, Shanghai 200433, China
Email: songmuzheng@yahoo.com

Keywords: Ginzburg-Landau systems, phase-field equations, nonautonomous dynamical systems, global attractors, convergence to equilibria, Łojasiewicz-Simon inequality, exponential attractors.
Received by editor(s): July 15, 2007
Published electronically: October 3, 2008
Additional Notes: Dr. Songmu Zheng is the corresponding author.
Article copyright: © Copyright 2008 Brown University
The copyright for this article reverts to public domain 28 years after publication.