English

Construction schemes: transferring structures from $\omega$ to $\omega_1$

Logic 2023-04-18 v1 General Topology

Abstract

A structural analysis of construction schemes is developed. That analysis is used to give simple and new constructions of combinatorial objects which have been of interest to set theorists and topologists. We then continue the study of capturing axioms associated to construction schemes. From them, we deduce the existence of several uncountable structures which are known to be independent from the usual axioms of Set Theory. Lastly, we prove that the capturing axiom FCA(part)FCA(part) is implied by Jensen's \Diamond principle.

Keywords

Cite

@article{arxiv.2304.07624,
  title  = {Construction schemes: transferring structures from $\omega$ to $\omega_1$},
  author = {Jorge Antonio Cruz Chapital and Osvaldo Guzmán and Stevo Todorcevic},
  journal= {arXiv preprint arXiv:2304.07624},
  year   = {2023}
}

Comments

65 pages

R2 v1 2026-06-28T10:07:08.574Z