Geodesic
Some characterizations of cosmic-spaces
Sibirskie èlektronnye matematičeskie izvestiâ, Tome 5 (2008), pp. 189-192.

Voir la notice de l'article provenant de la source Math-Net.Ru

In this paper, we prove that a space $X$ is a cosmic space if and only if it has a $\sigma$-strong network consisting of countable covers of $X$, which give a new characterization of cosmic-spaces.
Keywords: cosmic space, separable metric space. 
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X. Ge. Some characterizations of cosmic-spaces. Sibirskie èlektronnye matematičeskie izvestiâ, Tome 5 (2008), pp. 189-192. http://geodesic.mathdoc.fr/item/SEMR_2008_5_a13/

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