Affiliation:
1. Department of Matematics, University of Delhi, New Delhi, India
2. Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India
Abstract
In this paper we further study ?-Menger, ?-almost Menger and ?-weakly Menger
properties [13] and investigate their relationships with other selective
covering properties. We prove that in extremally disconnected semi-regular
spaces, the properties viz. Menger, semi-Menger, ?-Menger, ?-Menger, midly
Menger are equivalent; and every finite power of a space X has the selection
property Sf in(?-O, ?-O) if and only if X has the property Sf in(?-?, ?-?).
Publisher
National Library of Serbia
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