The σ-Locally Countable Images of Metric Spaces
Shengxiang Xia · Georgian Mathematical Journal · 2009
In this paper, the concept of a σ -locally countable mapping is introduced, by which the relations between metric spaces and spaces with σ -locally countable networks, or spaces with σ -locally countable k-networks, or spaces with σ -locally countable cs-networks, or spaces with σ -locally countable bases are established.