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On a generalization of
Σ-spaces
Akihiro Okuyama |
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Vol. 42 (1972), No. 2, 485–495
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Abstract |
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In order to simultaneously generalize the class of M-spaces and σ-spaces, K. Nagami introduced Σ-spaces. Subsequently, E. Michael defined a class of Σ#-spaces. In this paper we will discuss the class of Σ∗-spaces which lies between Σ-spaces and Σ#-spaces and which contains all images of Σ-spaces under closed continuous maps. |
Mathematical Subject Classification 2000
Primary: 54D20
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Milestones
Received: 16 April 1971
Revised: 8 October 1971
Published: 1 August 1972
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Authors |
| Akihiro Okuyama | |
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