English

A Hartman-Grobman theorem for algebraic dichotomies

Classical Analysis and ODEs 2023-06-16 v2

Abstract

Algebraic dichotomy is a generalization of an exponential dichotomy (Lin, JDE2009). This paper gives a version of Hartman-Grobman linearization theorem assuming that linear system admits an algebraic dichotomy, which generalizes the Palmer's linearization theorem. Besides, we prove that the homeomorphism in the linearization theorem (and has a H\"{o}lder continuous inverse). Comparing with exponential dichotomy, algebraic dichotomy is more complicate. The exponential dichotomy leads to the estimates teα(ts)ds\int_{-\infty}^{t}e^{-\alpha(t-s)}ds and t+eα(st)ds\int_{t}^{+\infty}e^{-\alpha(s-t)}ds which are convergent. However, the algebraic dichotomy will leads us to t(μ(t)μ(s))αds\int_{-\infty}^{t}\left(\frac{\mu(t)}{\mu(s)}\right)^{-\alpha}ds or t+(μ(s)μ(t))αds\int_{t}^{+\infty}\left(\frac{\mu(s)}{\mu(t)}\right)^{-\alpha}ds, whose the convergence is unknown in the sense of Riemann.

Keywords

Cite

@article{arxiv.2201.12037,
  title  = {A Hartman-Grobman theorem for algebraic dichotomies},
  author = {Chaofan Pan and Manuel Pinto and Y. H. Xia},
  journal= {arXiv preprint arXiv:2201.12037},
  year   = {2023}
}
R2 v1 2026-06-24T09:07:04.495Z