English

Emergence via non-existence of averages

Dynamical Systems 2022-03-30 v3

Abstract

Inspired by a recent work by Berger, we introduce the concept of pointwise emergence. This concept provides with a new quantitative perspective into the study of non-existence of averages for dynamical systems. We show that high pointwise emergence on a large set appears for abundant dynamical systems: Any continuous maps on a compact metric space with the specification property have super-polynomial pointwise emergence on a residual subset of the state space. Furthermore, there is a dense subset of any Newhouse open set each element of which has super-polynomial pointwise emergence on a positive Lebesgue measure subset of the state space.

Keywords

Cite

@article{arxiv.1904.03424,
  title  = {Emergence via non-existence of averages},
  author = {Shin Kiriki and Yushi Nakano and Teruhiko Soma},
  journal= {arXiv preprint arXiv:1904.03424},
  year   = {2022}
}

Comments

25 pages. Updated introduction, reorganised the paper, strengthened main theorem. Accepted for publication in Advances in Mathematics