Cardinal characteristics on bounded generalised Baire spaces

IF 0.6 2区 数学 Q2 LOGIC Annals of Pure and Applied Logic Pub Date : 2025-03-12 DOI:10.1016/j.apal.2025.103582
Tristan van der Vlugt
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Abstract

We will give an overview of four families of cardinal characteristics defined on subspaces ακb(α) of the generalised Baire space κκ, where κ is strongly inaccessible and bκκ. The considered families are bounded versions of the dominating, eventual difference, localisation and antilocalisation numbers, and their dual cardinals. We investigate parameters for which these cardinals are nontrivial and how the cardinals relate to each other and to other cardinals of the generalised Cichoń diagram. Finally we prove that different choices of parameters may lead to consistently distinct cardinals.
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有界广义Baire空间上的基数特征
我们将概述在广义Baire空间κκ的子空间∏α∈κb(α)上定义的四个基本特征族,其中κ是强不可达的,b∈κκ。所考虑的族是主导、最终差异、本地化和反本地化数及其双基数的有限版本。我们研究了这些基数是非平凡的参数,以及这些基数彼此之间以及与广义cichoski图的其他基数之间的关系。最后,我们证明了不同的参数选择可能导致一致的不同基数。
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来源期刊
CiteScore
1.40
自引率
12.50%
发文量
78
审稿时长
200 days
期刊介绍: The journal Annals of Pure and Applied Logic publishes high quality papers in all areas of mathematical logic as well as applications of logic in mathematics, in theoretical computer science and in other related disciplines. All submissions to the journal should be mathematically correct, well written (preferably in English)and contain relevant new results that are of significant interest to a substantial number of logicians. The journal also considers submissions that are somewhat too long to be published by other journals while being too short to form a separate memoir provided that they are of particular outstanding quality and broad interest. In addition, Annals of Pure and Applied Logic occasionally publishes special issues of selected papers from well-chosen conferences in pure and applied logic.
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