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Menger and Menger-type star selection principles for hit-and-miss topology
Topology and its Applications ( IF 0.6 ) Pub Date : 2020-12-28 , DOI: 10.1016/j.topol.2020.107574
Ricardo Cruz-Castillo , Alejandro Ramírez-Páramo , Jesús F. Tenorio

In this paper we characterize the Menger property and the selection principles star-Menger and strongly star-Menger in the hyperspaces CL(X), K(X), F(X) and CS(X), endowed with the hit-and-miss topology. To characterize the corresponding principles type star, we introduce a couple of technical selection principles, which we have denoted by SM(ΠΔ(Γ),ΠΔ(Γ)) and SM(ΠΔ(Γ),ΠΔ(Γ)). Also, we give an equivalence of the selection principle Sfin(D,D) in the same hyperspaces, by using cV-covers of a space.



中文翻译:

命中和未命中拓扑的Menger和Menger型恒星选择原则

在本文中,我们描述了超空间中的Menger属性和选择原则star-Menger和强star-Menger C大号XķXFXCSX,具有按击不停的拓扑结构。为了表征相应的原理类型星号,我们介绍了一些技术选择原理,我们将其表示为小号中号ΠΔΓΠΔΓ小号中号ΠΔΓΠΔΓ。另外,我们给出选择原则的等价关系小号F一世ñdd 在相同的超空间中,通过使用 CV-空间的盖子。

更新日期:2021-01-10
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