Cardinal invariants for the G                         δ                          topology

Angelo Bella; Santi Spadaro

doi:10.4064/cm7349-6-2018

Cardinal invariants for the G _δ topology

Angelo Bella
, Santi Spadaro

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

We prove upper bounds for the spread, the Lindelöf number and the weak Lindelöf number of the G _δ topology on a topological space, and apply a few of our bounds to give a short proof to a recent result of Juhász and van Mill regarding the cardinality of a σ-countably tight homogeneous compactum.

Original language	English
Pages (from-to)	123-133
Number of pages	11
Journal	Colloquium Mathematicum
Volume	156
Issue number	1
DOIs	https://doi.org/10.4064/cm7349-6-2018
State	Published - 1 Jan 2019
Externally published	Yes

Keywords

Cardinal invariant
G topology
Homogeneous space
Lindelöf degree
Weak Lindelöf number

ASJC Scopus subject areas

General Mathematics

Access to Document

10.4064/cm7349-6-2018

Cite this

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