English

$\mathsf{SOCA}$ and $\mathsf{OGA}$ for $\mathsf{HL}$ spaces with strong properties

General Topology 2022-04-15 v1 Logic

Abstract

We study open colorings in certain classes of hereditary Lindel\"{o}f (HL\mathsf{HL}) spaces and submetrizable spaces. In particular, we show that the definible version for the Open Graph Axiom (OGA\mathsf{OGA}) holds for the class of HL\mathsf{HL} strong Choquet submetrizable spaces extending a well-known result of Feng. Furthermore, we show the consistency of the Open Graph Axiom for regular spaces that have countable spread and it's square also has it, reaching closer to a well known conjecture of Todor\v{c}evi\'{c}: "It is consistent that all regular spaces with countable spread satisfy OGA\mathsf{OGA}".

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Cite

@article{arxiv.2204.06650,
  title  = {$\mathsf{SOCA}$ and $\mathsf{OGA}$ for $\mathsf{HL}$ spaces with strong properties},
  author = {José Antonio Corona-García and Iván Ongay-Valverde and Ulises Ariet Ramos-García},
  journal= {arXiv preprint arXiv:2204.06650},
  year   = {2022}
}

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18 pages