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math.LO2025
Two or not two ?
Rafał Filipów, Adam Kwela
The paper is devoted to comparison of two generalizations of the bounding number .
math.GN2025
Critical ideals for compact spaces
Rafał Filipów, Małgorzata Kowalczuk, Adam Kwela
For each countable ordinal , we introduce an ideal and use it to characterize the class of all compact countable spaces which are homeomorphic to the space $ω^α\cdot n+…