The Pure and Applied Mathematics (한국수학교육학회지시리즈B:순수및응용수학)
- Volume 5 Issue 1
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- Pages.1-3
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- 1998
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- 1226-0657(pISSN)
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- 2287-6081(eISSN)
A NOTE ON QUASI-OPEN MAPS
Abstract
Let f : X longrightarrow Y be quasi-open. We show that: (1) If A
Let f : X longrightarrow Y be quasi-open. We show that: (1) If A