English

Forced vibrations of wave equations with non-monotone nonlinearities

Analysis of PDEs 2007-05-23 v1

Abstract

We prove existence and regularity of periodic in time solutions of completely resonant nonlinear forced wave equations with Dirichlet boundary conditions for a large class of non-monotone forcing terms. Our approach is based on a variational Lyapunov-Schmidt reduction. It turns out that the infinite dimensional bifurcation equation exhibits an intrinsic lack of compactness. We solve it via a minimization argument and a-priori estimate methods inspired to regularity theory of Rabinowitz

Keywords

Cite

@article{arxiv.math/0410619,
  title  = {Forced vibrations of wave equations with non-monotone nonlinearities},
  author = {M. Berti and L. Biasco},
  journal= {arXiv preprint arXiv:math/0410619},
  year   = {2007}
}
R2 v1 2026-07-22T17:11:45.278Z