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math.LO2024
Countably compact extensions and cardinal characteristics of the continuum
Serhii Bardyla, Peter Nyikos, Lyubomyr Zdomskyy
In this paper, we show that the existence of certain first-countable compact-like extensions is equivalent to the equality between corresponding cardinal characteristics of the con…
math.LO2023
Filters, ideal independence and ideal Mrówka spaces
Serhii Bardyla, Jonathan Cancino-Manríquez, Vera Fischer +1
A family such that for all finite and , the set $A \setminus \big…