Convergent subseries of s ℐ -convergent series
Autor: | Jacek Tryba, Martin Sleziak, Ladislav Mišík |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | Lithuanian Mathematical Journal. 61:56-59 |
ISSN: | 1573-8825 0363-1672 |
DOI: | 10.1007/s10986-020-09504-7 |
Popis: | We say that an ideal ℐ has property (T) if for every ℐ-convergent series $$ {\sum}_{n=1}^{\infty }{x}_n, $$ there exists a set A ∈ ℐ such that Σn∈ℕ\A xn converges in the usual sense. The aim of this paper is to construct a nontrivial ideal with property (T) under the assumption that cov (ℳ) = c. |
Databáze: | OpenAIRE |
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