English

The product of Lindel\"of groups and $\mathbb R$-factorizability

Group Theory 2023-10-03 v4 General Topology

Abstract

Lindel\"of topological groups G1G_1 , H1H_1, G2G_2, H2H_2 are constructed in such a way that the products of G1×H1G_1 \times H_1 and G2×H2G_2 \times H_2 are not R\mathbb R-factorizable groups and (1) the group G1×H1G_1 \times H_1 is not pseudo-1\aleph_1-compact; (2) the group G2×H2G_2 \times H_2 is a separable not normal group and contains a discrete closed subset of the cardinality continuum.

Keywords

Cite

@article{arxiv.2303.06369,
  title  = {The product of Lindel\"of groups and $\mathbb R$-factorizability},
  author = {Evgeny Reznichenko},
  journal= {arXiv preprint arXiv:2303.06369},
  year   = {2023}
}