English

Baire Category Lower Density Operators with Borel Values

General Topology 2022-07-15 v1

Abstract

We prove that the lower density operator associated with the Baire category density points in the real line has Borel values of class Π30\pmb \Pi^0_3 which is analogous to the measure case. We also introduce the notion of the Baire category density point of a subset with the Baire property of the Cantor space, and we prove that it generates a lower density operator with Borel values of class Π30\pmb \Pi^0_3.

Cite

@article{arxiv.2207.06821,
  title  = {Baire Category Lower Density Operators with Borel Values},
  author = {Marek Balcerzak and Jacek Hejduk and Artur Wachowicz},
  journal= {arXiv preprint arXiv:2207.06821},
  year   = {2022}
}
R2 v1 2026-06-25T00:54:42.122Z