Some kinds of sparseness on the real line and ideals on ω
Abstract
We show that a large class of summable ideals can be defined using a certain kind of “sparseness” of subsets of the line near zero, but it is still an open question whether this gives a characterization of the whole class.
Keywords
summable ideals; O’Malley points
References
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Wydział Matematyki i Informatyki, Uniwersytet Łódzki Poland
Wydział Matematyki i Informatyki, Uniwersytet Łódzki Poland
https://orcid.org/0000-0002-2883-0941
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