Rigorous Numerics for Partial Differential Equations: the Kuramoto-Sivashinsky equation
Analysis of PDEs
2025-10-20 v1 Numerical Analysis
Dynamical Systems
Numerical Analysis
Abstract
We present a new topological method for the study of the dynamics of dissipative PDE's. The method is based on the concept of the self-consistent apriori bounds, which allows to justify rigorously the Galerkin projection. As a result we obtain a low-dimensional system of ODE's subject to rigorously controlled small perturbation from the neglected modes. To this ODE's we apply the Conley index to obtain information about the dynamics of the PDE under consideration. As an application we present a computer assisted proof of the existence of fixed points for the Kuramoto-Sivashinsky equation.
Cite
@article{arxiv.math/0005247,
title = {Rigorous Numerics for Partial Differential Equations: the Kuramoto-Sivashinsky equation},
author = {P. Zgliczynski and K. Mischaikow},
journal= {arXiv preprint arXiv:math/0005247},
year = {2025}
}
Comments
Latex, 32 pages, 2 figures