English

Guessing clubs for aD, non D-spaces

General Topology 2010-08-12 v2 Logic

Abstract

We prove that there exists a 0-dimensional, scattered T2T_2 space XX such that XX is aD but not linearly D, answering a question of Arhangel'skii. The constructions are based on Shelah's club guessing principles.

Cite

@article{arxiv.1007.1666,
  title  = {Guessing clubs for aD, non D-spaces},
  author = {Daniel Soukup},
  journal= {arXiv preprint arXiv:1007.1666},
  year   = {2010}
}

Comments

9 pages, extended with remarks

R2 v1 2026-06-21T15:46:36.233Z