论文标题

强迫非扭转的Abelian大小的分类,最多是2美元^\ Mathfrak C $,具有非平凡的收敛序列

Forcing a classification of non-torsion Abelian groups of size at most $2^\mathfrak c$ with non-trivial convergent sequences

论文作者

Bellini, Matheus Koveroff, Rodrigues, Vinicius de Oliveira, Tomita, Artur Hideyuki

论文摘要

我们将所有亚伯利亚基数组的分类最多为$ 2^\ mathfrak c $,该c $接受了一个具有非平凡收敛序列的非常紧凑的组。 In particular, we answer (consistently) Question 24 of Dikranjan and Shakhmatov for cardinality at most $2^{\mathfrak c}$, by showing that if a non-torsion Abelian group of size at most $2^\mathfrak c$ admits a countably compact Hausdorff group topology, then it admits a countably compact Hausdorff group topology with non-trivial convergent sequences.

We force a classification of all the Abelian groups of cardinality at most $2^\mathfrak c$ that admit a countably compact group with a non-trivial convergent sequence. In particular, we answer (consistently) Question 24 of Dikranjan and Shakhmatov for cardinality at most $2^{\mathfrak c}$, by showing that if a non-torsion Abelian group of size at most $2^\mathfrak c$ admits a countably compact Hausdorff group topology, then it admits a countably compact Hausdorff group topology with non-trivial convergent sequences.

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