English

Quasicontinuous functions with values in Piotrowski spaces

General Topology 2021-11-01 v2

Abstract

A topological space XX is called Piotrowski if every quasicontinuous map f:ZXf:Z\to X from a Baire space ZZ to XX has a continuity point. In this paper we survey known results on Piotrowski spaces and investigate the relation of Piotrowski spaces to strictly fragmentable, Stegall, and game determined spaces. Also we prove that a Piotrowski Tychonoff space XX contains a dense (completely) metrizable Baire subspace if and only if XX is Baire (Choquet).

Keywords

Cite

@article{arxiv.1609.05482,
  title  = {Quasicontinuous functions with values in Piotrowski spaces},
  author = {Taras Banakh},
  journal= {arXiv preprint arXiv:1609.05482},
  year   = {2021}
}

Comments

14 pages

R2 v1 2026-06-22T15:53:22.414Z