Structural stability for scalar reaction-diffusion equations

Abstract

In this paper, we prove the structural stability for a family of scalar reaction-diffusion equations. Our arguments consist of using invariant manifold theorem to reduce the problem to a finite dimension and then, we use the structural stability of Morse–Smale flows in a finite dimension to obtain the corresponding result in infinite dimension. As a consequence, we obtain the optimal rate of convergence of the attractors and estimate the Gromov–Hausdorff distance of the attractors using continuous $\varepsilon$-isometries.

Keywords

• morse–smale semiflows
• rate of convergence of attractors
• structural stability
• invariant manifolds
• gromov–hausdorff distance