A non-polybounded absolutely closed $36$-Shelah group
Group Theory
2022-12-06 v1 General Topology
Logic
Abstract
For every infinite cardinal with we construct a group of cardinality such that (i) is -Shelah, which means that for any subset of cardinality ; (ii) is absolutely -closed and projectively -discrete, which means that for every homomorphism to a topological semigroup the image is a closed discrete subspace of , (iii) cannot be covered by finitely many algebraic subsets, i.e., subsets of the form for some .
Cite
@article{arxiv.2212.01750,
title = {A non-polybounded absolutely closed $36$-Shelah group},
author = {Taras Banakh},
journal= {arXiv preprint arXiv:2212.01750},
year = {2022}
}
Comments
23 pages