Compact-open topology;
Baire property;
Moving off property;
Lasnev spaces;
C-K(X);
D O I:
10.1016/j.topol.2016.01.026
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
Finding an internal condition on a topological space X which is necessary and sufficient for the compact-open topology C-k(X) to be Baire is an open problem. The moving off property is a known characterization for the class of first-countable or locally compact spaces. Here we show that it also holds for the class of closed images of first-countable paracompact spaces, hence Lagnev spaces in particular; furthermore, Baireness of C-k (X) is equivalent to its alpha-favorability for X in this class. We will also show that if X is the closed image of a locally compact paracompact space then C-k (X) is alpha-favorable. (C) 2016 Elsevier B.V. All rights reserved.