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.
Some Kinds of Sparseness on the Real Line and Ideals on ω
Language: English
Page range: 45 - 50
Submitted on: Nov 27, 2019
Accepted on: Jun 3, 2020
Published on: Jul 9, 2020
Published by: University of Silesia in Katowice, Institute of Mathematics
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year
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© 2020 Małgorzata Filipczak, Grażyna Horbaczewska, published by University of Silesia in Katowice, Institute of Mathematics
This work is licensed under the Creative Commons Attribution 4.0 License.