Another Problem of J\'onsson and McKenzie from 1982: Refinement Properties for Connected Powers of Posets
Combinatorics
2020-05-19 v1
Abstract
In 1982, J\'onsson and McKenzie posed the following problem: "Find counter examples (or prove that none exist) to the refinement of [, , , and non-empty posets] under" the condition ", , and are finite and connected." That is, in this situation, are there posets , , , and such that , , , and ? In this note, this problem is solved.
Cite
@article{arxiv.2005.08477,
title = {Another Problem of J\'onsson and McKenzie from 1982: Refinement Properties for Connected Powers of Posets},
author = {Jonathan David Farley},
journal= {arXiv preprint arXiv:2005.08477},
year = {2020}
}
Comments
4 pages, 1 figure