English

Parabolic problems in highly oscillating thin domains

Analysis of PDEs 2013-12-05 v1

Abstract

In this work we consider the asymptotic behavior of the nonlinear semigroup defined by a semilinear parabolic problem with homogeneous Neumann boundary conditions posed in a bounded region of the plane that degenerates into a line segment when a positive parameter ϵ\epsilon goes to zero (a thin domain). Here we also allow that its boundary presents highly oscillatory behavior with different orders and variable profile. We take thin domains possessing the same order ϵ\epsilon to the thickness and amplitude of the oscillations but assuming different order to the period of oscillations on the top and the bottom of the boundary. We combine methods from linear homogenization theory and the theory on nonlinear dynamics of dissipative systems to obtain the limit problem establishing convergence properties for the solutions. At the end we show the upper semicontinuity of the attractors and stationary states.

Keywords

Cite

@article{arxiv.1312.1131,
  title  = {Parabolic problems in highly oscillating thin domains},
  author = {Marcone C. Pereira},
  journal= {arXiv preprint arXiv:1312.1131},
  year   = {2013}
}

Comments

41 pages, 2 figures

R2 v1 2026-06-22T02:20:33.198Z