English

Minimal space with non-minimal square

Dynamical Systems 2020-05-27 v2

Abstract

We completely solve the problem whether the product of two compact metric spaces admitting minimal maps also admits a minimal map. Recently Boro\'nski, Clark and Oprocha gave a negative answer in the particular case when homeomorphisms rather than continuous maps are considered. In the present paper we show that there is a metric continuum XX admitting a minimal map, in fact a minimal homeomorphism, such that X×XX\times X does not admit any minimal map.

Keywords

Cite

@article{arxiv.1803.06323,
  title  = {Minimal space with non-minimal square},
  author = {Ľubomír Snoha and Vladimír Špitalský},
  journal= {arXiv preprint arXiv:1803.06323},
  year   = {2020}
}

Comments

This preprint has never been submitted to a journal. An improved version of it, with stronger results, is a part of the preprint Minimal direct products (arXiv:2005.06969 [math.DS])

R2 v1 2026-06-23T00:55:44.753Z