Splittability over some classes of Corson compact spaces

被引:2
作者
Jardon, Daniel [1 ]
Tkachuk, Vladimir V. [2 ]
机构
[1] Univ Autonoma Ciudad Mexico, Acad Matemat, Mexico City 09620, DF, Mexico
[2] Univ Autonoma Metropolitana, Dept Matemat, Mexico City 09340, DF, Mexico
关键词
Splittability; Cleavability; Corson compact; Gul'ko compact; Scattered space; Eberlein compact;
D O I
10.1016/j.topol.2015.01.008
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We study splittability over some classes P of compact spaces commonly used in functional analysis. We show that, for some nice classes P, a compact space X is splittable over P if and only if every function f is an element of R-X is reachable from C-p(X) by a set belonging to P. We also establish that every weakly Corson compact scattered space is Eberlein compact answering a question from [10]. We also prove that under V = L, a compact space X is splittable over the class of Eberlein (Gul'ko, Corson) compact spaces if and only if X is Eberlein (Gul'ko, Corson) compact. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:41 / 49
页数:9
相关论文
共 35 条
[31]   Scattered compact sets in continuous images of Cech-complete spaces [J].
Banakh, Taras ;
Bokalo, Bogdan ;
Tkachuk, Vladimir .
TOPOLOGY AND ITS APPLICATIONS, 2020, 281
[32]   Some results and examples concerning Whyburn spaces [J].
Alas, Ofelia T. ;
Madriz-Mendoza, Maira ;
Wilson, Richard G. .
APPLIED GENERAL TOPOLOGY, 2012, 13 (01) :11-19
[33]   A THEOREM ON DECOMPOSITION INTO COMPACT-SCATTERED SUBSPACES AND CARDINALITY OF TOPOLOGICAL-SPACES [J].
BREGMAN, YH ;
SHAPIROVSKII, BE ;
SOSTAK, AP .
TOPOLOGY AND ITS APPLICATIONS, 1994, 57 (2-3) :307-316
[34]   ON CLEAVABILITY OF TOPOLOGICAL-SPACES OVER R, RN, AND R-OMEGA [J].
ARHANGELSKII, AV .
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, 1992, 659 :18-28
[35]   Some results and examples concerning Whyburn spaces (vol 13, pg 11, 2012) [J].
Alas, Delia T. ;
Madriz-Mendoza, Iaira ;
Wilson, Richard G. .
APPLIED GENERAL TOPOLOGY, 2012, 13 (02) :225-226