Strangely dispersed minimal sets in the quasiperiodically forced Arnold map
Dynamical Systems
2009-11-13 v1
Abstract
We study quasiperiodically forced circle endomorphisms, homotopic to the identity, and show that under suitable conditions these exhibit uncountably many minimal sets with a complicated structure, to which we refer to as `strangely dispersed'. Along the way, we generalise some well-known results about circle endomorphisms to the uniquely ergodically forced case. Namely, all rotation numbers in the rotation interval of a uniquely ergodically forced circle endomorphism are realised on minimal sets, and if the rotation interval has non-empty interior then the topological entropy is strictly positive. The results apply in particular to the quasiperiodically forced Arnold circle map, which serves as a paradigm example.
Cite
@article{arxiv.0807.4707,
title = {Strangely dispersed minimal sets in the quasiperiodically forced Arnold map},
author = {P. Glendinning and T. Jaeger and J. Stark},
journal= {arXiv preprint arXiv:0807.4707},
year = {2009}
}
Comments
21 pages, 10 figures