English

An explicit compact universal space for real flows

Dynamical Systems 2018-07-30 v2

Abstract

The Kakutani-Bebutov Theorem (1968) states that any compact metric real flow whose fixed point set is homeomorphic to a subset of R\mathbb{R} embeds into the Bebutov flow, the R\mathbb{R}-shift on C(R,[0,1])C(\mathbb{R},[0,1]). An interesting fact is that this universal space is a function space. However, it is not compact, nor locally compact. We construct an explicit countable product of compact subspaces of the Bebutov flow which is a universal space for all compact metric real flows, with no restriction; namely, into which any compact metric real flow embeds. The result is compared to previously known universal spaces.

Keywords

Cite

@article{arxiv.1612.08193,
  title  = {An explicit compact universal space for real flows},
  author = {Yonatan Gutman and Lei Jin},
  journal= {arXiv preprint arXiv:1612.08193},
  year   = {2018}
}

Comments

17 pages

R2 v1 2026-06-22T17:33:58.207Z