Araştırma Makalesi
Yıl 2014,
Cilt: 43 Sayı: 5, 801 - 807, 01.10.2014
Öz
A topological space X is called countably mesocompact if for every
countably open cover U of X, there exists an open refinement V of U
such that {V ∈ V : V ∩K 6= ∅} is finite for every compact set K in X. In
this paper, we investigate relations between insertion of semi-continuous
functions and a kind of spaces with countable mesocompactness , and
give some characterizations of countably mesocompact spaces, k-perfect
spaces and k-MCM spaces.
countably open cover U of X, there exists an open refinement V of U
such that {V ∈ V : V ∩K 6= ∅} is finite for every compact set K in X. In
this paper, we investigate relations between insertion of semi-continuous
functions and a kind of spaces with countable mesocompactness , and
give some characterizations of countably mesocompact spaces, k-perfect
spaces and k-MCM spaces.
Anahtar Kelimeler
Function insertion countably mesocompact spaces k-perfect spaces kMCM spaces
Kaynakça
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Toplam 1 adet kaynakça vardır.
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Bölüm | Matematik |
| Yazarlar | |
| Yayımlanma Tarihi | 1 Ekim 2014 |
| Yayımlandığı Sayı | Yıl 2014 Cilt: 43 Sayı: 5 |