English

Continuity of attractors for $\mathcal{C}^1$ perturbations of a smooth domain

Dynamical Systems 2020-01-01 v2

Abstract

We consider a family of semilinear parabolic problems with nonlinear boundary conditions {ut(x,t)=Δu(x,t)au(x,t)+f(u(x,t)), xΩϵ\mboxandt>0,uN(x,t)=g(u(x,t)), xΩϵ\mboxandt>0, \left\{ \begin{aligned} u_t(x,t) &=\Delta u(x,t) -au(x,t) + f(u(x,t)),\ x \in \Omega_\epsilon \mbox{ and } t>0\,,\\ \displaystyle\frac{\partial u}{\partial N}(x,t) &=g(u(x,t)),\ x \in \partial\Omega_\epsilon \mbox{ and } t>0\,, \end{aligned} \right. where Ω0Rn\Omega_0 \subset \mathbb{R}^n is a smooth (at least C2\mathcal{C}^2) domain , Ωϵ=hϵ(Ω0)\Omega_{\epsilon} = h_{\epsilon}(\Omega_0) and hϵh_{\epsilon} is a family of diffeomorphisms converging to the identity in the C1\mathcal{C}^1-norm. Assuming suitable regularity and dissipative conditions for the nonlinearites, we show that the problem is well posed for ϵ>0\epsilon>0 sufficiently small in a suitable scale of fractional spaces, the associated semigroup has a global attractor Aϵ\mathcal{A}_{\epsilon} and the family {Aϵ}\{\mathcal{A}_{\epsilon}\} is continuous at ϵ=0\epsilon = 0.

Keywords

Cite

@article{arxiv.1809.01690,
  title  = {Continuity of attractors for $\mathcal{C}^1$ perturbations of a smooth domain},
  author = {Antônio L. Pereira and Pricila S. Barbosa},
  journal= {arXiv preprint arXiv:1809.01690},
  year   = {2020}
}

Comments

arXiv admin note: text overlap with arXiv:1603.06104