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math.LO2023
Diamond on ladder systems and countably metacompact topological spaces
Rodrigo Carvalho, Tanmay Inamdar, Assaf Rinot
The property of countable metacompactness of a topological space gets its importance from Dowker's 1951 theorem that the product of a normal space X with the unit interval is again…
math.LO2023
A counterexample related to a theorem of Komjath and Weiss
Rodrigo Carvalho, Assaf Rinot
In a paper from 1987, Komjath and Weiss proved that for every regular topological space of character less than , if , then $X\rightarrow…