ON REGULAR SEPARABLE COUNTABLY COMPACT R-RIGID SPACES

被引:1
作者
Bardyla, Serhii [1 ]
Zdomskyy, Lyubomyr [1 ]
机构
[1] Univ Wien, Inst Math, Kurt Godel Res Ctr, Kolingasse 14-16, A-1090 Vienna, Austria
基金
奥地利科学基金会;
关键词
MOORE SPACE;
D O I
10.1007/s11856-022-2454-8
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A topological space X is said to be Y-rigid if any continuous map f: X -> Y is constant. In this paper we construct a number of examples of regular countably compact Double-struck capital R-rigid spaces with additional properties like separability and first countability. This way we answer several questions of Tzannes, Banakh, Ravsky, as well as get a consistent example of Double-struck capital R-rigid Nyikos space. Also, we show that it is consistent with ZFC that for every cardinal kappa < c there exists a regular separable countably compact space X which is Y-rigid with respect to any T-1 space Y of pseudocharacter <= kappa.
引用
收藏
页码:783 / 810
页数:28
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