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math.GN2021
Another characterization of meager ideals
Marek Balcerzak, Szymon Glab, Paolo Leonetti
We show that an ideal on the positive integers is meager if and only if there exists a bounded nonconvergent real sequence such that the set of subsequences [resp…
math.GN2020
The Baire Category of Subsequences and Permutations which preserve Limit Points
Marek Balcerzak, Paolo Leonetti
Let be a meager ideal on . We show that if is a sequence with values in a separable metric space then the set of subsequences [resp. permutations] of…