New class of time-periodic solutions to the 1D cubic wave equation

Author(s)
Filip Ficek, Maciej Maliborski
Abstract

In recent papers (arXiv:2407.16507, arXiv:2408.05158) we presented results suggesting the existence of a new class of time-periodic solutions to the defocusing cubic wave equation on a one-dimensional interval with Dirichlet boundary conditions. Here we confirm these findings by rigorously constructing solutions from this class. The proof uses rational arithmetic computations to verify essential operator bounds.

Organisation(s)
Gravitational Physics, Department of Mathematics
Publication date
06-2025
Austrian Fields of Science 2012
103019 Mathematical physics, 101002 Analysis
Keywords
Portal url
https://ucrisportal.univie.ac.at/en/publications/b3f032b3-b52a-49e7-aff1-d82226146bfb