English

Nonuniformly expanding 1d maps with logarithmic singularities

Dynamical Systems 2015-05-28 v1

Abstract

For a certain parametrized family of maps on the circle with critical points and logarithmic singularities where derivatives blow up to infinity, we construct a positive measure set of parameters corresponding to maps which exhibit nonuniformly expanding behavior. This implies the existence of "chaotic" dynamics in dissipative homoclinic tangles in periodically perturbed differential equations.

Keywords

Cite

@article{arxiv.1106.1707,
  title  = {Nonuniformly expanding 1d maps with logarithmic singularities},
  author = {Hiroki Takahasi and Qiudong Wang},
  journal= {arXiv preprint arXiv:1106.1707},
  year   = {2015}
}

Comments

17 pages, no figure

R2 v1 2026-06-21T18:19:45.652Z