A coanalytic Menger group that is not σ-compact

被引：2
|
作者：
Tokgoz, Secil [1 ]
机构：
[1] Hacettepe Univ, Dept Math, Ankara, Turkey
来源：
TURKISH JOURNAL OF MATHEMATICS | 2018年 / 42卷 / 01期
关键词：
Coanalytic; Menger; Hurewicz; Rothberger; gamma-property; sigma-compact; V = L; productively Lindelof; topological group; LINDELOF SPACES; COMBINATORICS; SETS; PROPERTY;
D O I：
10.3906/mat-1612-84
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
Under V = L we construct coanalytic topological subgroups of reals, demonstrating that even for definable groups of reals, selection principles may differ.
引用
收藏
页码：12 / 20
页数：9
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