实线上的几种稀疏性及ω上的理想

IF 0.4 Q4 MATHEMATICS

Annales Mathematicae Silesianae Pub Date : 2020-07-01 DOI:10.2478/amsil-2020-0014

M. Filipczak, G. Horbaczewska

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引用次数: 2

摘要

摘要我们证明了一大类可和理想可以用靠近零的线的子集的某种“稀疏性”来定义，但这是否给出了整个类的特征仍然是一个悬而未决的问题。

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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.

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来源期刊

Annales Mathematicae Silesianae Mathematics-Mathematics (all)

CiteScore

0.60

自引率

25.00%

发文量

审稿时长

27 weeks