Constructions of Lindel\"{o}f scattered P-spaces
Abstract
We construct locally Lindel\"of scattered P-spaces (LLSP spaces, in short) with prescribed widths and heights under different set-theoretic assumptions. We prove that there is an LLSP space of width and height and that it is relatively consistent with ZFC that there is an LLSP space of width and height . Also, we prove a stepping up theorem that, for every cardinal , permits us to construct from an LLSP space of width and height satisfying certain additional properties an LLSP space of width and height for every ordinal . Then, we obtain as consequences of the above results the following theorems: (1) For every ordinal there is an LLSP space of width and height . (2) It is relatively consistent with ZFC that there is an LLSP space of width and height for every ordinal .
Keywords
Cite
@article{arxiv.2111.05038,
title = {Constructions of Lindel\"{o}f scattered P-spaces},
author = {Juan Carlos Martínez and Lajos Soukup},
journal= {arXiv preprint arXiv:2111.05038},
year = {2021}
}
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14 pages