English

Non-existence of absolutely continuous invariant probabilities for exponential maps

Dynamical Systems 2009-02-18 v4

Abstract

We show that for entire maps of the form zλexp(z)z \mapsto \lambda \exp(z) such that the orbit of zero is bounded and such that Lebesgue almost every point is transitive, no absolutely continuous invariant probability measure can exist. This answers a long-standing open problem.

Keywords

Cite

@article{arxiv.0801.0075,
  title  = {Non-existence of absolutely continuous invariant probabilities for exponential maps},
  author = {Neil Dobbs and Bartlomiej Skorulski},
  journal= {arXiv preprint arXiv:0801.0075},
  year   = {2009}
}

Comments

4 pages. Similar to the version published in Fundamenta in February 2008

R2 v1 2026-06-21T09:58:18.757Z