Article ID Journal Published Year Pages File Type
4657790 Topology and its Applications 2016 7 Pages PDF
Abstract

A topological space X is called discretely generated   if for any A⊆XA⊆X and x∈A‾ there exists a discrete set D⊆AD⊆A such that x∈D‾. We solve the Problems 3.19 and 3.3 in [2]. Problem 3.19: Does the space {ξ}∪ω{ξ}∪ω embed into a box product of real lines when ξ∈βω∖ωξ∈βω∖ω? For any ξ∈βω∖ωξ∈βω∖ω, we answer negatively. Problem 3.3: Is any box product of first countable spaces discretely generated? We answer positively by assuming that the spaces are regular.

Related Topics
Physical Sciences and Engineering Mathematics Geometry and Topology
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