English

$1/k$-homogeneous long solenoids

General Topology 2017-10-12 v2

Abstract

We study nonmetric analogues of Vietoris solenoids. Let Λ\Lambda be an ordered continuum, and let p=p1,p2,\vec{p}=\langle p_1,p_2,\dots\rangle be a sequence of positive integers. We define a natural inverse limit space S(Λ,p)S(\Lambda,\vec{p}), where the first factor space is the nonmetric "circle" obtained by identifying the endpoints of Λ\Lambda, and the nnth factor space, n>1n>1, consists of p1p2pn1p_1p_2\cdot\dots \cdot p_{n-1} copies of Λ\Lambda laid end to end in a circle. We prove that for every cardinal κ1\kappa\geq 1, there is an ordered continuum Λ\Lambda such that S(Λ,p)S(\Lambda,\vec{p}) is 1κ\frac{1}{\kappa}-homogeneous; for κ>1\kappa>1, Λ\Lambda is built from copies of the long line. Our example with κ=2\kappa=2 provides a nonmetric answer to a question of Neumann-Lara, Pellicer-Covarrubias and Puga-Espinosa from 2005, and with κ=1\kappa=1 provides an example of a nonmetric homogeneous circle-like indecomposable continuum. Finally, we employ a cohomology argument to prove that for each ordered continuum Λ\Lambda, as p\vec{p} varies there are 2ω2^\omega-many nonhomeomorphic spaces S(Λ,p)S(\Lambda,\vec{p}).

Cite

@article{arxiv.1412.8508,
  title  = {$1/k$-homogeneous long solenoids},
  author = {Jan P. Boronski and Gary Gruenhage and George Kozlowski},
  journal= {arXiv preprint arXiv:1412.8508},
  year   = {2017}
}

Comments

17 pages

R2 v1 2026-06-22T07:46:29.403Z